3112021131312 has 40 divisors (see below), whose sum is σ = 8039451785904. Its totient is φ = 1037332136704.

The previous prime is 3112021131257. The next prime is 3112021131337. The reversal of 3112021131312 is 2131311202113.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10366558 + ... + 10662530.

Almost surely, 2^{3112021131312} is an apocalyptic number.

It is an amenable number.

3112021131312 is an abundant number, since it is smaller than the sum of its proper divisors (4927430654592).

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

3112021131312 is a wasteful number, since it uses less digits than its factorization.

3112021131312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515037 (or 515031 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 3112021131312 its reverse (2131311202113), we get a palindrome (5243332333425).

The spelling of 3112021131312 in words is "three trillion, one hundred twelve billion, twenty-one million, one hundred thirty-one thousand, three hundred twelve".