115311320 has 32 divisors (see below), whose sum is σ = 267822720. Its totient is φ = 44636160.

The previous prime is 115311283. The next prime is 115311331. The reversal of 115311320 is 23113511.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45257 + ... + 47736.

It is an arithmetic number, because the mean of its divisors is an integer number (8369460).

Almost surely, 2^115311320 is an apocalyptic number.

115311320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115311320 is an abundant number, since it is smaller than the sum of its proper divisors (152511400).

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

115311320 is a wasteful number, since it uses less digits than its factorization.

115311320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93035 (or 93031 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 17.

The square root of 115311320 is about 10738.3108541334. The cubic root of 115311320 is about 486.7328385242.

Adding to 115311320 its reverse (23113511), we get a palindrome (138424831).

The spelling of 115311320 in words is "one hundred fifteen million, three hundred eleven thousand, three hundred twenty".