312013213012 has 12 divisors (see below), whose sum is σ = 550191239136. Its totient is φ = 154815716120.

The previous prime is 312013212991. The next prime is 312013213049. The reversal of 312013213012 is 210312310213.

It is a super-2 number, since 2×312013213012² (a number of 24 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, 297722008 + ... + 297723055.

It is an arithmetic number, because the mean of its divisors is an integer number (45849269928).

Almost surely, 2^312013213012 is an apocalyptic number.

It is an amenable number.

312013213012 is a deficient number, since it is larger than the sum of its proper divisors (238178026124).

312013213012 is a wasteful number, since it uses less digits than its factorization.

312013213012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 595445198 (or 595445196 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 312013213012 its reverse (210312310213), we get a palindrome (522325523225).

The spelling of 312013213012 in words is "three hundred twelve billion, thirteen million, two hundred thirteen thousand, twelve".