2131301312323 has 4 divisors (see below), whose sum is σ = 2131320540168. Its totient is φ = 2131282084480.

The previous prime is 2131301312321. The next prime is 2131301312369. The reversal of 2131301312323 is 3232131031312.

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 2131301312323 - 2¹ = 2131301312321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2131301312321) 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, 9446686 + ... + 9669667.

It is an arithmetic number, because the mean of its divisors is an integer number (532830135042).

Almost surely, 2^{2131301312323} is an apocalyptic number.

2131301312323 is a deficient number, since it is larger than the sum of its proper divisors (19227845).

2131301312323 is a wasteful number, since it uses less digits than its factorization.

2131301312323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19227844.

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

Adding to 2131301312323 its reverse (3232131031312), we get a palindrome (5363432343635).

The spelling of 2131301312323 in words is "two trillion, one hundred thirty-one billion, three hundred one million, three hundred twelve thousand, three hundred twenty-three".