3131233121212 has 12 divisors (see below), whose sum is σ = 6262466242480. Its totient is φ = 1341957051936.

The previous prime is 3131233121197. The next prime is 3131233121257. The reversal of 3131233121212 is 2121213321313.

3131233121212 is an admirable number.

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, 55914877137 + ... + 55914877192.

Almost surely, 2^{3131233121212} is an apocalyptic number.

It is an amenable number.

3131233121212 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

3131233121212 is a wasteful number, since it uses less digits than its factorization.

3131233121212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111829754340 (or 111829754338 counting only the distinct ones).

The product of its digits is 1296, while the sum is 25.

Adding to 3131233121212 its reverse (2121213321313), we get a palindrome (5252446442525).

The spelling of 3131233121212 in words is "three trillion, one hundred thirty-one billion, two hundred thirty-three million, one hundred twenty-one thousand, two hundred twelve".