1113231040 has 28 divisors (see below), whose sum is σ = 2650882176. Its totient is φ = 445292288.

The previous prime is 1113231019. The next prime is 1113231047. The reversal of 1113231040 is 401323111.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (1113231047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1739104 + ... + 1739743.

Almost surely, 2^1113231040 is an apocalyptic number.

1113231040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1113231040 is an abundant number, since it is smaller than the sum of its proper divisors (1537651136).

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

1113231040 is an equidigital number, since it uses as much as digits as its factorization.

1113231040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3478864 (or 3478854 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1113231040 is about 33365.1171135364. The cubic root of 1113231040 is about 1036.4024613639.

Adding to 1113231040 its reverse (401323111), we get a palindrome (1514554151).

The spelling of 1113231040 in words is "one billion, one hundred thirteen million, two hundred thirty-one thousand, forty".