115021120 has 28 divisors (see below), whose sum is σ = 273894804. Its totient is φ = 46008320.

The previous prime is 115021069. The next prime is 115021139. The reversal of 115021120 is 21120511.

It can be written as a sum of positive squares in 2 ways, for example, as 81288256 + 33732864 = 9016^2 + 5808^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 115021120.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 179401 + ... + 180040.

Almost surely, 2^115021120 is an apocalyptic number.

115021120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115021120 is an abundant number, since it is smaller than the sum of its proper divisors (158873684).

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

115021120 is an equidigital number, since it uses as much as digits as its factorization.

115021120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359458 (or 359448 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 13.

The square root of 115021120 is about 10724.7899746335. The cubic root of 115021120 is about 486.3241809626.

Adding to 115021120 its reverse (21120511), we get a palindrome (136141631).

The spelling of 115021120 in words is "one hundred fifteen million, twenty-one thousand, one hundred twenty".