313224231 has 4 divisors (see below), whose sum is σ = 417632312. Its totient is φ = 208816152.

The previous prime is 313224227. The next prime is 313224251. The reversal of 313224231 is 132422313.

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

It is not a de Polignac number, because 313224231 - 2² = 313224227 is a prime.

It is a super-2 number, since 2×313224231² = 196218837771082722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 313224198 and 313224207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313224211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52204036 + ... + 52204041.

It is an arithmetic number, because the mean of its divisors is an integer number (104408078).

Almost surely, 2^313224231 is an apocalyptic number.

313224231 is a deficient number, since it is larger than the sum of its proper divisors (104408081).

313224231 is a wasteful number, since it uses less digits than its factorization.

313224231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104408080.

The product of its digits is 864, while the sum is 21.

The square root of 313224231 is about 17698.1420211275. The cubic root of 313224231 is about 679.1282304635.

Adding to 313224231 its reverse (132422313), we get a palindrome (445646544).

It can be divided in two parts, 31322 and 4231, that added together give a palindrome (35553).

The spelling of 313224231 in words is "three hundred thirteen million, two hundred twenty-four thousand, two hundred thirty-one".