231113013330031 has 4 divisors (see below), whose sum is σ = 264129158091472. Its totient is φ = 198096868568592.

The previous prime is 231113013329981. The next prime is 231113013330041. The reversal of 231113013330031 is 130033310311132.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 231113013330031 - 2¹⁵ = 231113013297263 is a prime.

It is a super-2 number, since 2×231113013330031² (a number of 30 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 = 231113013329978 and 231113013330005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231113013330041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16508072380710 + ... + 16508072380723.

It is an arithmetic number, because the mean of its divisors is an integer number (66032289522868).

Almost surely, 2^{231113013330031} is an apocalyptic number.

231113013330031 is a deficient number, since it is larger than the sum of its proper divisors (33016144761441).

231113013330031 is an equidigital number, since it uses as much as digits as its factorization.

231113013330031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33016144761440.

The product of its (nonzero) digits is 1458, while the sum is 25.

Adding to 231113013330031 its reverse (130033310311132), we get a palindrome (361146323641163).

The spelling of 231113013330031 in words is "two hundred thirty-one trillion, one hundred thirteen billion, thirteen million, three hundred thirty thousand, thirty-one".