213130131323323 has 4 divisors (see below), whose sum is σ = 216311178059560. Its totient is φ = 209949084587088.

The previous prime is 213130131323321. The next prime is 213130131323381. The reversal of 213130131323323 is 323323131031312.

It is a happy number.

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 213130131323323 - 2¹ = 213130131323321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213130131323321) 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, 1590523368018 + ... + 1590523368151.

It is an arithmetic number, because the mean of its divisors is an integer number (54077794514890).

Almost surely, 2^{213130131323323} is an apocalyptic number.

213130131323323 is a deficient number, since it is larger than the sum of its proper divisors (3181046736237).

213130131323323 is an equidigital number, since it uses as much as digits as its factorization.

213130131323323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3181046736236.

The product of its (nonzero) digits is 17496, while the sum is 31.

Adding to 213130131323323 its reverse (323323131031312), we get a palindrome (536453262354635).

The spelling of 213130131323323 in words is "two hundred thirteen trillion, one hundred thirty billion, one hundred thirty-one million, three hundred twenty-three thousand, three hundred twenty-three".