313244231 has 4 divisors (see below), whose sum is σ = 313315200. Its totient is φ = 313173264.

The previous prime is 313244219. The next prime is 313244263. The reversal of 313244231 is 132442313.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-313244231 is a prime.

It is a super-2 number, since 2×313244231² = 196243896509562722, 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 = 313244197 and 313244206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313244201) 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, 28391 + ... + 37848.

It is an arithmetic number, because the mean of its divisors is an integer number (78328800).

Almost surely, 2^313244231 is an apocalyptic number.

313244231 is a deficient number, since it is larger than the sum of its proper divisors (70969).

313244231 is an equidigital number, since it uses as much as digits as its factorization.

313244231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70968.

The product of its digits is 1728, while the sum is 23.

The square root of 313244231 is about 17698.7070431713. The cubic root of 313244231 is about 679.1426847258.

Adding to 313244231 its reverse (132442313), we get a palindrome (445686544).

The spelling of 313244231 in words is "three hundred thirteen million, two hundred forty-four thousand, two hundred thirty-one".