311023123012112 has 80 divisors (see below), whose sum is σ = 690526405005312. Its totient is φ = 132941010862080.

The previous prime is 311023123012103. The next prime is 311023123012117. The reversal of 311023123012112 is 211210321320113.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (311023123012117) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 921280208 + ... + 921617744.

Almost surely, 2^{311023123012112} is an apocalyptic number.

It is an amenable number.

311023123012112 is an abundant number, since it is smaller than the sum of its proper divisors (379503281993200).

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

311023123012112 is a wasteful number, since it uses less digits than its factorization.

311023123012112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359416 (or 359410 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 311023123012112 its reverse (211210321320113), we get a palindrome (522233444332225).

The spelling of 311023123012112 in words is "three hundred eleven trillion, twenty-three billion, one hundred twenty-three million, twelve thousand, one hundred twelve".