131312330212233 has 4 divisors (see below), whose sum is σ = 175083106949648. Its totient is φ = 87541553474820.

The previous prime is 131312330212229. The next prime is 131312330212237. The reversal of 131312330212233 is 332212033213131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (131312330212229) and next prime (131312330212237).

It is not a de Polignac number, because 131312330212233 - 2² = 131312330212229 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 131312330212233.

It is not an unprimeable number, because it can be changed into a prime (131312330212237) 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, 21885388368703 + ... + 21885388368708.

It is an arithmetic number, because the mean of its divisors is an integer number (43770776737412).

Almost surely, 2^{131312330212233} is an apocalyptic number.

It is an amenable number.

131312330212233 is a deficient number, since it is larger than the sum of its proper divisors (43770776737415).

131312330212233 is an equidigital number, since it uses as much as digits as its factorization.

131312330212233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43770776737414.

The product of its (nonzero) digits is 11664, while the sum is 30.

Adding to 131312330212233 its reverse (332212033213131), we get a palindrome (463524363425364).

The spelling of 131312330212233 in words is "one hundred thirty-one trillion, three hundred twelve billion, three hundred thirty million, two hundred twelve thousand, two hundred thirty-three".