131312223103013 has 4 divisors (see below), whose sum is σ = 131507337848268. Its totient is φ = 131117108357760.

The previous prime is 131312223103001. The next prime is 131312223103043. The reversal of 131312223103013 is 310301322213131.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 100340248932004 + 30971974171009 = 10016998^2 + 5565247^2 .

It is a cyclic number.

It is not a de Polignac number, because 131312223103013 - 2³⁴ = 131295043233829 is a prime.

It is a super-2 number, since 2×131312223103013² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131312223103043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97557371618 + ... + 97557372963.

It is an arithmetic number, because the mean of its divisors is an integer number (32876834462067).

Almost surely, 2^{131312223103013} is an apocalyptic number.

It is an amenable number.

131312223103013 is a deficient number, since it is larger than the sum of its proper divisors (195114745255).

131312223103013 is an equidigital number, since it uses as much as digits as its factorization.

131312223103013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195114745254.

The product of its (nonzero) digits is 1944, while the sum is 26.

Adding to 131312223103013 its reverse (310301322213131), we get a palindrome (441613545316144).

The spelling of 131312223103013 in words is "one hundred thirty-one trillion, three hundred twelve billion, two hundred twenty-three million, one hundred three thousand, thirteen".