312101312012 has 24 divisors (see below), whose sum is σ = 624221627904. Its totient is φ = 133753632912.

The previous prime is 312101311997. The next prime is 312101312027. The reversal of 312101312012 is 210213101213.

It is an interprime number because it is at equal distance from previous prime (312101311997) and next prime (312101312027).

It is a super-2 number, since 2×312101312012² (a number of 24 digits) contains 22 as substring.

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, 880463 + ... + 1182969.

It is an arithmetic number, because the mean of its divisors is an integer number (26009234496).

Almost surely, 2^312101312012 is an apocalyptic number.

It is an amenable number.

312101312012 is an abundant number, since it is smaller than the sum of its proper divisors (312120315892).

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

312101312012 is a wasteful number, since it uses less digits than its factorization.

312101312012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339365 (or 339363 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 312101312012 its reverse (210213101213), we get a palindrome (522314413225).

The spelling of 312101312012 in words is "three hundred twelve billion, one hundred one million, three hundred twelve thousand, twelve".