312556655213 has 12 divisors (see below), whose sum is σ = 355400703420. Its totient is φ = 274344396480.

The previous prime is 312556655207. The next prime is 312556655233.

312556655213 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 2 ways, for example, as 166886956324 + 145669698889 = 408518^2 + 381667^2 .

It is not a de Polignac number, because 312556655213 - 2¹⁶ = 312556589677 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 (312556655233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44532920 + ... + 44539937.

It is an arithmetic number, because the mean of its divisors is an integer number (29616725285).

Almost surely, 2^312556655213 is an apocalyptic number.

It is an amenable number.

312556655213 is a deficient number, since it is larger than the sum of its proper divisors (42844048207).

312556655213 is a wasteful number, since it uses less digits than its factorization.

312556655213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89072908 (or 89072897 counting only the distinct ones).

The product of its digits is 810000, while the sum is 44.

It can be divided in two parts, 312556 and 655213, that added together give a palindrome (967769).

The spelling of 312556655213 in words is "three hundred twelve billion, five hundred fifty-six million, six hundred fifty-five thousand, two hundred thirteen".