231313103231 has 8 divisors (see below), whose sum is σ = 267979173024. Its totient is φ = 195552368640.

The previous prime is 231313103191. The next prime is 231313103249. The reversal of 231313103231 is 132301313132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-231313103231 is a prime.

It is a super-2 number, since 2×231313103231² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 231313103197 and 231313103206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231313103291) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 226333250 + ... + 226334271.

It is an arithmetic number, because the mean of its divisors is an integer number (33497396628).

Almost surely, 2^231313103231 is an apocalyptic number.

231313103231 is a deficient number, since it is larger than the sum of its proper divisors (36666069793).

231313103231 is an equidigital number, since it uses as much as digits as its factorization.

231313103231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452667601.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 231313103231 its reverse (132301313132), we get a palindrome (363614416363).

The spelling of 231313103231 in words is "two hundred thirty-one billion, three hundred thirteen million, one hundred three thousand, two hundred thirty-one".