31204134211312 has 20 divisors (see below), whose sum is σ = 61449124954936. Its totient is φ = 15346295513280.

The previous prime is 31204134211297. The next prime is 31204134211343. The reversal of 31204134211312 is 21311243140213.

It is a super-2 number, since 2×31204134211312² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15985723518 + ... + 15985725469.

Almost surely, 2^{31204134211312} is an apocalyptic number.

It is an amenable number.

31204134211312 is a deficient number, since it is larger than the sum of its proper divisors (30244990743624).

31204134211312 is a wasteful number, since it uses less digits than its factorization.

31204134211312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31971449056 (or 31971449050 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

Adding to 31204134211312 its reverse (21311243140213), we get a palindrome (52515377351525).

The spelling of 31204134211312 in words is "thirty-one trillion, two hundred four billion, one hundred thirty-four million, two hundred eleven thousand, three hundred twelve".