231320033130231 has 24 divisors (see below), whose sum is σ = 346723528394880. Its totient is φ = 154115689961592.

The previous prime is 231320033130209. The next prime is 231320033130233. The reversal of 231320033130231 is 132031330023132.

231320033130231 is a `hidden beast` number, since 2 + 3 + 1 + 3 + 20 + 0 + 331 + 302 + 3 + 1 = 666.

It is not a de Polignac number, because 231320033130231 - 2²² = 231320028935927 is a prime.

It is a super-2 number, since 2×231320033130231² (a number of 30 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 231320033130195 and 231320033130204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231320033130233) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 301052115 + ... + 301819508.

It is an arithmetic number, because the mean of its divisors is an integer number (14446813683120).

Almost surely, 2^{231320033130231} is an apocalyptic number.

231320033130231 is a deficient number, since it is larger than the sum of its proper divisors (115403495264649).

231320033130231 is an equidigital number, since it uses as much as digits as its factorization.

231320033130231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 602873217 (or 602873205 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 27.

Adding to 231320033130231 its reverse (132031330023132), we get a palindrome (363351363153363).

The spelling of 231320033130231 in words is "two hundred thirty-one trillion, three hundred twenty billion, thirty-three million, one hundred thirty thousand, two hundred thirty-one".