312552565255213 has 4 divisors (see below), whose sum is σ = 312555442399900. Its totient is φ = 312549688110528.

The previous prime is 312552565255123. The next prime is 312552565255243.

312552565255213 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 91387424344329 + 221165140910884 = 9559677^2 + 14871622^2 .

It is a cyclic number.

It is not a de Polignac number, because 312552565255213 - 2²¹ = 312552563158061 is a prime.

It is a super-2 number, since 2×312552565255213² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312552565255243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1438409388 + ... + 1438626661.

It is an arithmetic number, because the mean of its divisors is an integer number (78138860599975).

Almost surely, 2^{312552565255213} is an apocalyptic number.

It is an amenable number.

312552565255213 is a deficient number, since it is larger than the sum of its proper divisors (2877144687).

312552565255213 is a wasteful number, since it uses less digits than its factorization.

312552565255213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2877144686.

The product of its digits is 13500000, while the sum is 52.

The spelling of 312552565255213 in words is "three hundred twelve trillion, five hundred fifty-two billion, five hundred sixty-five million, two hundred fifty-five thousand, two hundred thirteen".