131302121023 has 4 divisors (see below), whose sum is σ = 132027547288. Its totient is φ = 130576694760.

The previous prime is 131302121017. The next prime is 131302121051. The reversal of 131302121023 is 320121203131.

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 131302121023 - 2⁵ = 131302120991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131302121323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 362712861 + ... + 362713222.

It is an arithmetic number, because the mean of its divisors is an integer number (33006886822).

Almost surely, 2^131302121023 is an apocalyptic number.

131302121023 is a deficient number, since it is larger than the sum of its proper divisors (725426265).

131302121023 is an equidigital number, since it uses as much as digits as its factorization.

131302121023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 725426264.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 131302121023 its reverse (320121203131), we get a palindrome (451423324154).

The spelling of 131302121023 in words is "one hundred thirty-one billion, three hundred two million, one hundred twenty-one thousand, twenty-three".