131312223223 has 4 divisors (see below), whose sum is σ = 131552282680. Its totient is φ = 131072163768.

The previous prime is 131312223221. The next prime is 131312223227. The reversal of 131312223223 is 322322213131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 322322213131 = 8089 ⋅39846979.

It is a cyclic number.

It is not a de Polignac number, because 131312223223 - 2¹ = 131312223221 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 (131312223221) 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, 120028908 + ... + 120030001.

It is an arithmetic number, because the mean of its divisors is an integer number (32888070670).

Almost surely, 2^131312223223 is an apocalyptic number.

131312223223 is a deficient number, since it is larger than the sum of its proper divisors (240059457).

131312223223 is an equidigital number, since it uses as much as digits as its factorization.

131312223223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240059456.

The product of its digits is 2592, while the sum is 25.

Adding to 131312223223 its reverse (322322213131), we get a palindrome (453634436354).

The spelling of 131312223223 in words is "one hundred thirty-one billion, three hundred twelve million, two hundred twenty-three thousand, two hundred twenty-three".