131313210031213 has 4 divisors (see below), whose sum is σ = 150072240035680. Its totient is φ = 112554180026748.

The previous prime is 131313210031207. The next prime is 131313210031271. The reversal of 131313210031213 is 312130012313131.

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 a cyclic number.

It is not a de Polignac number, because 131313210031213 - 2⁵ = 131313210031181 is a prime.

It is a super-3 number, since 3×131313210031213³ (a number of 43 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131313210931213) 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, 9379515002223 + ... + 9379515002236.

It is an arithmetic number, because the mean of its divisors is an integer number (37518060008920).

Almost surely, 2^{131313210031213} is an apocalyptic number.

It is an amenable number.

131313210031213 is a deficient number, since it is larger than the sum of its proper divisors (18759030004467).

131313210031213 is an equidigital number, since it uses as much as digits as its factorization.

131313210031213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18759030004466.

The product of its (nonzero) digits is 972, while the sum is 25.

Adding to 131313210031213 its reverse (312130012313131), we get a palindrome (443443222344344).

The spelling of 131313210031213 in words is "one hundred thirty-one trillion, three hundred thirteen billion, two hundred ten million, thirty-one thousand, two hundred thirteen".