310121111112 has 16 divisors (see below), whose sum is σ = 775302777840. Its totient is φ = 103373703696.

The previous prime is 310121111071. The next prime is 310121111123. The reversal of 310121111112 is 211111121013.

It is a junction number, because it is equal to n+sod(n) for n = 310121111091 and 310121111100.

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, 6460856458 + ... + 6460856505.

It is an arithmetic number, because the mean of its divisors is an integer number (48456423615).

Almost surely, 2^310121111112 is an apocalyptic number.

It is an amenable number.

310121111112 is an abundant number, since it is smaller than the sum of its proper divisors (465181666728).

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

310121111112 is a wasteful number, since it uses less digits than its factorization.

310121111112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12921712972 (or 12921712968 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 15.

Adding to 310121111112 its reverse (211111121013), we get a palindrome (521232232125).

Subtracting from 310121111112 its reverse (211111121013), we obtain a palindrome (99009990099).

The spelling of 310121111112 in words is "three hundred ten billion, one hundred twenty-one million, one hundred eleven thousand, one hundred twelve".