312302223231 has 16 divisors (see below), whose sum is σ = 424634751744. Its totient is φ = 204119745984.

The previous prime is 312302223227. The next prime is 312302223251. The reversal of 312302223231 is 132322203213.

It is not a de Polignac number, because 312302223231 - 2² = 312302223227 is a prime.

It is a super-2 number, since 2×312302223231² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312302223251) 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, 4233001 + ... + 4306146.

It is an arithmetic number, because the mean of its divisors is an integer number (26539671984).

Almost surely, 2^312302223231 is an apocalyptic number.

312302223231 is a deficient number, since it is larger than the sum of its proper divisors (112332528513).

312302223231 is a wasteful number, since it uses less digits than its factorization.

312302223231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8539390.

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 312302223231 its reverse (132322203213), we get a palindrome (444624426444).

The spelling of 312302223231 in words is "three hundred twelve billion, three hundred two million, two hundred twenty-three thousand, two hundred thirty-one".