213320131223 has 4 divisors (see below), whose sum is σ = 215716986720. Its totient is φ = 210923275728.

The previous prime is 213320131183. The next prime is 213320131253. The reversal of 213320131223 is 322131023312.

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 213320131223 - 2⁸ = 213320130967 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 (213320131253) 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, 1198427615 + ... + 1198427792.

It is an arithmetic number, because the mean of its divisors is an integer number (53929246680).

Almost surely, 2^213320131223 is an apocalyptic number.

213320131223 is a deficient number, since it is larger than the sum of its proper divisors (2396855497).

213320131223 is an equidigital number, since it uses as much as digits as its factorization.

213320131223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2396855496.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 213320131223 its reverse (322131023312), we get a palindrome (535451154535).

The spelling of 213320131223 in words is "two hundred thirteen billion, three hundred twenty million, one hundred thirty-one thousand, two hundred twenty-three".