231313401 has 36 divisors (see below), whose sum is σ = 380905616. Its totient is φ = 140172120.

The previous prime is 231313319. The next prime is 231313417. The reversal of 231313401 is 104313132.

231313401 is a `hidden beast` number, since 231 + 31 + 3 + 401 = 666.

It is not a de Polignac number, because 231313401 - 2⁹ = 231312889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231313471) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 25470 + ... + 33336.

Almost surely, 2^231313401 is an apocalyptic number.

It is an amenable number.

231313401 is a deficient number, since it is larger than the sum of its proper divisors (149592215).

231313401 is an equidigital number, since it uses as much as digits as its factorization.

231313401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7904 (or 7881 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 231313401 is about 15208.9907949213. The cubic root of 231313401 is about 613.8566024805.

Adding to 231313401 its reverse (104313132), we get a palindrome (335626533).

The spelling of 231313401 in words is "two hundred thirty-one million, three hundred thirteen thousand, four hundred one".