131021310400023 has 16 divisors (see below), whose sum is σ = 177302919002240. Its totient is φ = 86043627638496.

The previous prime is 131021310399997. The next prime is 131021310400037. The reversal of 131021310400023 is 320004013120131.

It is not a de Polignac number, because 131021310400023 - 2¹⁰ = 131021310398999 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 (131026310400023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 130654413 + ... + 131653401.

It is an arithmetic number, because the mean of its divisors is an integer number (11081432437640).

Almost surely, 2^{131021310400023} is an apocalyptic number.

131021310400023 is a deficient number, since it is larger than the sum of its proper divisors (46281608602217).

131021310400023 is an equidigital number, since it uses as much as digits as its factorization.

131021310400023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1651566.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 131021310400023 its reverse (320004013120131), we get a palindrome (451025323520154).

The spelling of 131021310400023 in words is "one hundred thirty-one trillion, twenty-one billion, three hundred ten million, four hundred thousand, twenty-three".