115145442312 has 32 divisors (see below), whose sum is σ = 294558110880. Its totient is φ = 37489213440.

The previous prime is 115145442311. The next prime is 115145442319. The reversal of 115145442312 is 213244541511.

It is a super-2 number, since 2×115145442312² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (115145442311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55786489 + ... + 55788552.

It is an arithmetic number, because the mean of its divisors is an integer number (9204940965).

Almost surely, 2^115145442312 is an apocalyptic number.

115145442312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

115145442312 is an abundant number, since it is smaller than the sum of its proper divisors (179412668568).

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

115145442312 is a wasteful number, since it uses less digits than its factorization.

115145442312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111575093 (or 111575089 counting only the distinct ones).

The product of its digits is 19200, while the sum is 33.

Adding to 115145442312 its reverse (213244541511), we get a palindrome (328389983823).

The spelling of 115145442312 in words is "one hundred fifteen billion, one hundred forty-five million, four hundred forty-two thousand, three hundred twelve".