3123310131013 has 4 divisors (see below), whose sum is σ = 3123411908140. Its totient is φ = 3123208353888.

The previous prime is 3123310130981. The next prime is 3123310131017. The reversal of 3123310131013 is 3101310133213.

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 1963902340449 + 1159407790564 = 1401393^2 + 1076758^2 .

It is a cyclic number.

It is not a de Polignac number, because 3123310131013 - 2⁵ = 3123310130981 is a prime.

It is a super-3 number, since 3×3123310131013³ (a number of 38 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 (3123310131017) 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, 50842518 + ... + 50903911.

It is an arithmetic number, because the mean of its divisors is an integer number (780852977035).

Almost surely, 2^{3123310131013} is an apocalyptic number.

It is an amenable number.

3123310131013 is a deficient number, since it is larger than the sum of its proper divisors (101777127).

3123310131013 is a wasteful number, since it uses less digits than its factorization.

3123310131013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101777126.

The product of its (nonzero) digits is 486, while the sum is 22.

Adding to 3123310131013 its reverse (3101310133213), we get a palindrome (6224620264226).

The spelling of 3123310131013 in words is "three trillion, one hundred twenty-three billion, three hundred ten million, one hundred thirty-one thousand, thirteen".