312512215213 has 32 divisors (see below), whose sum is σ = 365736384000. Its totient is φ = 264015990720.

The previous prime is 312512215201. The next prime is 312512215241.

312512215213 is nontrivially palindromic in base 10.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-312512215213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312512215013) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5731443 + ... + 5785711.

It is an arithmetic number, because the mean of its divisors is an integer number (11429262000).

Almost surely, 2^312512215213 is an apocalyptic number.

It is an amenable number.

312512215213 is a deficient number, since it is larger than the sum of its proper divisors (53224168787).

312512215213 is a wasteful number, since it uses less digits than its factorization.

312512215213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54825.

The product of its digits is 3600, while the sum is 28.

It can be divided in two parts, 312512 and 215213, that added together give a palindrome (527725).

The spelling of 312512215213 in words is "three hundred twelve billion, five hundred twelve million, two hundred fifteen thousand, two hundred thirteen".