313045231 has 2 divisors, whose sum is σ = 313045232. Its totient is φ = 313045230.

The previous prime is 313045211. The next prime is 313045237. The reversal of 313045231 is 132540313.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 313045231 - 2⁵ = 313045199 is a prime.

It is a super-2 number, since 2×313045231² = 195994633303686722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (313045237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156522615 + 156522616.

It is an arithmetic number, because the mean of its divisors is an integer number (156522616).

Almost surely, 2^313045231 is an apocalyptic number.

313045231 is a deficient number, since it is larger than the sum of its proper divisors (1).

313045231 is an equidigital number, since it uses as much as digits as its factorization.

313045231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 313045231 is about 17693.0842704148. The cubic root of 313045231 is about 678.9988374116.

Adding to 313045231 its reverse (132540313), we get a palindrome (445585544).

The spelling of 313045231 in words is "three hundred thirteen million, forty-five thousand, two hundred thirty-one".