312031343222223 has 16 divisors (see below), whose sum is σ = 425640481758720. Its totient is φ = 203237107121216.

The previous prime is 312031343222153. The next prime is 312031343222309. The reversal of 312031343222223 is 322222343130213.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-312031343222223 is a prime.

It is a super-2 number, since 2×312031343222223² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312031343222023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1944549165 + ... + 1944709622.

It is an arithmetic number, because the mean of its divisors is an integer number (26602530109920).

Almost surely, 2^{312031343222223} is an apocalyptic number.

312031343222223 is a deficient number, since it is larger than the sum of its proper divisors (113609138536497).

312031343222223 is a wasteful number, since it uses less digits than its factorization.

312031343222223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3889259406.

The product of its (nonzero) digits is 62208, while the sum is 33.

Adding to 312031343222223 its reverse (322222343130213), we get a palindrome (634253686352436).

The spelling of 312031343222223 in words is "three hundred twelve trillion, thirty-one billion, three hundred forty-three million, two hundred twenty-two thousand, two hundred twenty-three".