3131211434012 has 48 divisors (see below), whose sum is σ = 5736957456384. Its totient is φ = 1493598840000.

The previous prime is 3131211434009. The next prime is 3131211434027. The reversal of 3131211434012 is 2104341121313.

It is a super-2 number, since 2×3131211434012² (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 15 ways as a sum of consecutive naturals, for example, 4414637 + ... + 5074587.

It is an arithmetic number, because the mean of its divisors is an integer number (119519947008).

Almost surely, 2^{3131211434012} is an apocalyptic number.

It is an amenable number.

3131211434012 is a deficient number, since it is larger than the sum of its proper divisors (2605746022372).

3131211434012 is a wasteful number, since it uses less digits than its factorization.

3131211434012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 660530 (or 660528 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

Adding to 3131211434012 its reverse (2104341121313), we get a palindrome (5235552555325).

The spelling of 3131211434012 in words is "three trillion, one hundred thirty-one billion, two hundred eleven million, four hundred thirty-four thousand, twelve".