131233131020023 has 4 divisors (see below), whose sum is σ = 131233179375000. Its totient is φ = 131233082665048.

The previous prime is 131233131019997. The next prime is 131233131020051. The reversal of 131233131020023 is 320020131332131.

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 131233131020023 - 2²¹ = 131233128922871 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 131233131020023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131233131020723) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19848148 + ... + 25620601.

It is an arithmetic number, because the mean of its divisors is an integer number (32808294843750).

Almost surely, 2^{131233131020023} is an apocalyptic number.

131233131020023 is a deficient number, since it is larger than the sum of its proper divisors (48354977).

131233131020023 is an equidigital number, since it uses as much as digits as its factorization.

131233131020023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48354976.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 131233131020023 its reverse (320020131332131), we get a palindrome (451253262352154).

The spelling of 131233131020023 in words is "one hundred thirty-one trillion, two hundred thirty-three billion, one hundred thirty-one million, twenty thousand, twenty-three".