231031104023 has 4 divisors (see below), whose sum is σ = 233412868080. Its totient is φ = 228649339968.

The previous prime is 231031104019. The next prime is 231031104043. The reversal of 231031104023 is 320401130132.

231031104023 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 231031104023 - 2² = 231031104019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 231031103986 and 231031104004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231031104043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1190881883 + ... + 1190882076.

It is an arithmetic number, because the mean of its divisors is an integer number (58353217020).

Almost surely, 2^231031104023 is an apocalyptic number.

231031104023 is a deficient number, since it is larger than the sum of its proper divisors (2381764057).

231031104023 is an equidigital number, since it uses as much as digits as its factorization.

231031104023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2381764056.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 231031104023 its reverse (320401130132), we get a palindrome (551432234155).

The spelling of 231031104023 in words is "two hundred thirty-one billion, thirty-one million, one hundred four thousand, twenty-three".