313312431 has 8 divisors (see below), whose sum is σ = 442323504. Its totient is φ = 196588160.

The previous prime is 313312427. The next prime is 313312457. The reversal of 313312431 is 134213313.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 313312431 - 2² = 313312427 is a prime.

It is a super-2 number, since 2×313312431² = 196329358838259522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 313312398 and 313312407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313312631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3071640 + ... + 3071741.

It is an arithmetic number, because the mean of its divisors is an integer number (55290438).

Almost surely, 2^313312431 is an apocalyptic number.

313312431 is a deficient number, since it is larger than the sum of its proper divisors (129011073).

313312431 is a wasteful number, since it uses less digits than its factorization.

313312431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6143401.

The product of its digits is 648, while the sum is 21.

The square root of 313312431 is about 17700.6336327263. The cubic root of 313312431 is about 679.1919691344.

Adding to 313312431 its reverse (134213313), we get a palindrome (447525744).

The spelling of 313312431 in words is "three hundred thirteen million, three hundred twelve thousand, four hundred thirty-one".