3121223023312 has 20 divisors (see below), whose sum is σ = 6176037047616. Its totient is φ = 1527407011040.

The previous prime is 3121223023273. The next prime is 3121223023349. The reversal of 3121223023312 is 2133203221213.

It is a super-2 number, since 2×3121223023312² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

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, 2075280514 + ... + 2075282017.

Almost surely, 2^{3121223023312} is an apocalyptic number.

It is an amenable number.

3121223023312 is a deficient number, since it is larger than the sum of its proper divisors (3054814024304).

3121223023312 is a wasteful number, since it uses less digits than its factorization.

3121223023312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4150562586 (or 4150562580 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 3121223023312 its reverse (2133203221213), we get a palindrome (5254426244525).

The spelling of 3121223023312 in words is "three trillion, one hundred twenty-one billion, two hundred twenty-three million, twenty-three thousand, three hundred twelve".