312113131112 has 32 divisors (see below), whose sum is σ = 600738038400. Its totient is φ = 151970442624.

The previous prime is 312113131097. The next prime is 312113131163. The reversal of 312113131112 is 211131311213.

It is a super-2 number, since 2×312113131112² (a number of 24 digits) contains 22 as substring.

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, 3336398 + ... + 3428669.

It is an arithmetic number, because the mean of its divisors is an integer number (18773063700).

Almost surely, 2^312113131112 is an apocalyptic number.

It is an amenable number.

312113131112 is a deficient number, since it is larger than the sum of its proper divisors (288624907288).

312113131112 is a wasteful number, since it uses less digits than its factorization.

312113131112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6765225 (or 6765221 counting only the distinct ones).

The product of its digits is 108, while the sum is 20.

Adding to 312113131112 its reverse (211131311213), we get a palindrome (523244442325).

The spelling of 312113131112 in words is "three hundred twelve billion, one hundred thirteen million, one hundred thirty-one thousand, one hundred twelve".