313040231 has 4 divisors (see below), whose sum is σ = 357760272. Its totient is φ = 268320192.

The previous prime is 313040197. The next prime is 313040237. The reversal of 313040231 is 132040313.

It is a happy number.

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

It is not a de Polignac number, because 313040231 - 2¹⁴ = 313023847 is a prime.

It is a super-2 number, since 2×313040231² = 195988372449066722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313040237) 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, 22360010 + ... + 22360023.

It is an arithmetic number, because the mean of its divisors is an integer number (89440068).

Almost surely, 2^313040231 is an apocalyptic number.

313040231 is a deficient number, since it is larger than the sum of its proper divisors (44720041).

313040231 is an equidigital number, since it uses as much as digits as its factorization.

313040231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44720040.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 313040231 is about 17692.9429717048. The cubic root of 313040231 is about 678.9952223725.

Adding to 313040231 its reverse (132040313), we get a palindrome (445080544).

The spelling of 313040231 in words is "three hundred thirteen million, forty thousand, two hundred thirty-one".