115312112020 has 48 divisors (see below), whose sum is σ = 279602184960. Its totient is φ = 39127993344.

The previous prime is 115312111991. The next prime is 115312112023. The reversal of 115312112020 is 20211213511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115312112023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4232080 + ... + 4259239.

It is an arithmetic number, because the mean of its divisors is an integer number (5825045520).

Almost surely, 2^115312112020 is an apocalyptic number.

115312112020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115312112020 is an abundant number, since it is smaller than the sum of its proper divisors (164290072940).

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

115312112020 is a wasteful number, since it uses less digits than its factorization.

115312112020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8491432 (or 8491430 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 19.

Adding to 115312112020 its reverse (20211213511), we get a palindrome (135523325531).

The spelling of 115312112020 in words is "one hundred fifteen billion, three hundred twelve million, one hundred twelve thousand, twenty".