2011051320 has 32 divisors (see below), whose sum is σ = 6033154320. Its totient is φ = 536280320.

The previous prime is 2011051309. The next prime is 2011051321. The reversal of 2011051320 is 231501102.

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 2011051320.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011051321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8379261 + ... + 8379500.

Almost surely, 2^2011051320 is an apocalyptic number.

2011051320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2011051320 is an abundant number, since it is smaller than the sum of its proper divisors (4022103000).

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

2011051320 is a wasteful number, since it uses less digits than its factorization.

2011051320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16758775 (or 16758771 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 2011051320 is about 44844.7468495475. The cubic root of 2011051320 is about 1262.2374204103.

Adding to 2011051320 its reverse (231501102), we get a palindrome (2242552422).

The spelling of 2011051320 in words is "two billion, eleven million, fifty-one thousand, three hundred twenty".