1115011320 has 64 divisors (see below), whose sum is σ = 3394984320. Its totient is φ = 292896384.

The previous prime is 1115011309. The next prime is 1115011327. The reversal of 1115011320 is 231105111.

1115011320 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×1115011320³ (a number of 28 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1115011320.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1115011327) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61302 + ... + 77381.

It is an arithmetic number, because the mean of its divisors is an integer number (53046630).

Almost surely, 2^1115011320 is an apocalyptic number.

1115011320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1115011320 is an abundant number, since it is smaller than the sum of its proper divisors (2279973000).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1115011320 is a wasteful number, since it uses less digits than its factorization.

1115011320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138764 (or 138760 counting only the distinct ones).

The product of its (nonzero) digits is 30, while the sum is 15.

The square root of 1115011320 is about 33391.7852173255. The cubic root of 1115011320 is about 1036.9546390119.

Adding to 1115011320 its reverse (231105111), we get a palindrome (1346116431).

The spelling of 1115011320 in words is "one billion, one hundred fifteen million, eleven thousand, three hundred twenty".