231313031133 has 8 divisors (see below), whose sum is σ = 308453637888. Its totient is φ = 154190555904.

The previous prime is 231313031123. The next prime is 231313031141. The reversal of 231313031133 is 331130313132.

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

It is not a de Polignac number, because 231313031133 - 2⁵ = 231313031101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231313031123) 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, 4503085 + ... + 4554162.

It is an arithmetic number, because the mean of its divisors is an integer number (38556704736).

Almost surely, 2^231313031133 is an apocalyptic number.

It is an amenable number.

231313031133 is a deficient number, since it is larger than the sum of its proper divisors (77140606755).

231313031133 is an equidigital number, since it uses as much as digits as its factorization.

231313031133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9065763.

The product of its (nonzero) digits is 1458, while the sum is 24.

Adding to 231313031133 its reverse (331130313132), we get a palindrome (562443344265).

The spelling of 231313031133 in words is "two hundred thirty-one billion, three hundred thirteen million, thirty-one thousand, one hundred thirty-three".