313243231 has 12 divisors (see below), whose sum is σ = 365851080. Its totient is φ = 267414000.

The previous prime is 313243223. The next prime is 313243283. The reversal of 313243231 is 132342313.

It is not a de Polignac number, because 313243231 - 2³ = 313243223 is a prime.

It is a super-2 number, since 2×313243231² = 196242643534638722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313243531) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 436 + ... + 25033.

It is an arithmetic number, because the mean of its divisors is an integer number (30487590).

Almost surely, 2^313243231 is an apocalyptic number.

313243231 is a deficient number, since it is larger than the sum of its proper divisors (52607849).

313243231 is a wasteful number, since it uses less digits than its factorization.

313243231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25734 (or 25727 counting only the distinct ones).

The product of its digits is 1296, while the sum is 22.

The square root of 313243231 is about 17698.6787924975. The cubic root of 313243231 is about 679.1419620273.

Adding to 313243231 its reverse (132342313), we get a palindrome (445585544).

The spelling of 313243231 in words is "three hundred thirteen million, two hundred forty-three thousand, two hundred thirty-one".