312115431112 has 32 divisors (see below), whose sum is σ = 590959586880. Its totient is φ = 154526523840.

The previous prime is 312115431101. The next prime is 312115431143. The reversal of 312115431112 is 211134511213.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 13743687 + ... + 13766377.

It is an arithmetic number, because the mean of its divisors is an integer number (18467487090).

Almost surely, 2^312115431112 is an apocalyptic number.

It is an amenable number.

312115431112 is a deficient number, since it is larger than the sum of its proper divisors (278844155768).

312115431112 is a wasteful number, since it uses less digits than its factorization.

312115431112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39493 (or 39489 counting only the distinct ones).

The product of its digits is 720, while the sum is 25.

Adding to 312115431112 its reverse (211134511213), we get a palindrome (523249942325).

The spelling of 312115431112 in words is "three hundred twelve billion, one hundred fifteen million, four hundred thirty-one thousand, one hundred twelve".