312103032111112 has 16 divisors (see below), whose sum is σ = 638392565682000. Its totient is φ = 141865014595920.

The previous prime is 312103032111007. The next prime is 312103032111133. The reversal of 312103032111112 is 211111230301213.

It is a Harshad number since it is a multiple of its sum of digits (22).

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, 1773312682362 + ... + 1773312682537.

It is an arithmetic number, because the mean of its divisors is an integer number (39899535355125).

Almost surely, 2^{312103032111112} is an apocalyptic number.

It is an amenable number.

312103032111112 is an abundant number, since it is smaller than the sum of its proper divisors (326289533570888).

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

312103032111112 is a wasteful number, since it uses less digits than its factorization.

312103032111112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3546625364916 (or 3546625364912 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 22.

Adding to 312103032111112 its reverse (211111230301213), we get a palindrome (523214262412325).

The spelling of 312103032111112 in words is "three hundred twelve trillion, one hundred three billion, thirty-two million, one hundred eleven thousand, one hundred twelve".