312332223 has 24 divisors (see below), whose sum is σ = 500067840. Its totient is φ = 172715760.

The previous prime is 312332221. The next prime is 312332227. The reversal of 312332223 is 322233213.

It is not a de Polignac number, because 312332223 - 2¹ = 312332221 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 312332223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312332221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29713 + ... + 38826.

It is an arithmetic number, because the mean of its divisors is an integer number (20836160).

Almost surely, 2^312332223 is an apocalyptic number.

312332223 is a deficient number, since it is larger than the sum of its proper divisors (187735617).

312332223 is a wasteful number, since it uses less digits than its factorization.

312332223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68587 (or 68580 counting only the distinct ones).

The product of its digits is 1296, while the sum is 21.

The square root of 312332223 is about 17672.9234423736. The cubic root of 312332223 is about 678.4829379164.

Adding to 312332223 its reverse (322233213), we get a palindrome (634565436).

The spelling of 312332223 in words is "three hundred twelve million, three hundred thirty-two thousand, two hundred twenty-three".