313442231 has 2 divisors, whose sum is σ = 313442232. Its totient is φ = 313442230.

The previous prime is 313442191. The next prime is 313442273. The reversal of 313442231 is 132244313.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 313442231 - 2²² = 309247927 is a prime.

It is a super-2 number, since 2×313442231² = 196492064348514722, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 313442197 and 313442206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (313442291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156721115 + 156721116.

It is an arithmetic number, because the mean of its divisors is an integer number (156721116).

Almost surely, 2^313442231 is an apocalyptic number.

313442231 is a deficient number, since it is larger than the sum of its proper divisors (1).

313442231 is an equidigital number, since it uses as much as digits as its factorization.

313442231 is an evil number, because the sum of its binary digits is even.

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

The square root of 313442231 is about 17704.2997884695. The cubic root of 313442231 is about 679.2857487373.

Adding to 313442231 its reverse (132244313), we get a palindrome (445686544).

The spelling of 313442231 in words is "three hundred thirteen million, four hundred forty-two thousand, two hundred thirty-one".