115321312 has 24 divisors (see below), whose sum is σ = 230153616. Its totient is φ = 56869632.

The previous prime is 115321289. The next prime is 115321321. The reversal of 115321312 is 213123511.

It is a self number, because there is not a number n which added to its sum of digits gives 115321312.

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, 22348 + ... + 27019.

It is an arithmetic number, because the mean of its divisors is an integer number (9589734).

Almost surely, 2^115321312 is an apocalyptic number.

It is an amenable number.

115321312 is a deficient number, since it is larger than the sum of its proper divisors (114832304).

115321312 is an equidigital number, since it uses as much as digits as its factorization.

115321312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49450 (or 49442 counting only the distinct ones).

The product of its digits is 180, while the sum is 19.

The square root of 115321312 is about 10738.7760941366. The cubic root of 115321312 is about 486.7468969706.

Adding to 115321312 its reverse (213123511), we get a palindrome (328444823).

The spelling of 115321312 in words is "one hundred fifteen million, three hundred twenty-one thousand, three hundred twelve".