331313130100013 has 4 divisors (see below), whose sum is σ = 331318461797148. Its totient is φ = 331307798402880.

The previous prime is 331313130099923. The next prime is 331313130100067. The reversal of 331313130100013 is 310001031313133.

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 113340445945609 + 217972684154404 = 10646147^2 + 14763898^2 .

It is a cyclic number.

It is not a de Polignac number, because 331313130100013 - 2¹⁶ = 331313130034477 is a prime.

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 (331313130100613) 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, 2665755356 + ... + 2665879637.

It is an arithmetic number, because the mean of its divisors is an integer number (82829615449287).

Almost surely, 2^{331313130100013} is an apocalyptic number.

It is an amenable number.

331313130100013 is a deficient number, since it is larger than the sum of its proper divisors (5331697135).

331313130100013 is an equidigital number, since it uses as much as digits as its factorization.

331313130100013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5331697134.

The product of its (nonzero) digits is 729, while the sum is 23.

Adding to 331313130100013 its reverse (310001031313133), we get a palindrome (641314161413146).

The spelling of 331313130100013 in words is "three hundred thirty-one trillion, three hundred thirteen billion, one hundred thirty million, one hundred thousand, thirteen".