13031312003113 has 4 divisors (see below), whose sum is σ = 13797859768020. Its totient is φ = 12264764238208.

The previous prime is 13031312003071. The next prime is 13031312003123. The reversal of 13031312003113 is 31130021313031.

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 9114681016809 + 3916630986304 = 3019053^2 + 1979048^2 .

It is a cyclic number.

It is not a de Polignac number, because 13031312003113 - 2²¹ = 13031309905961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13031312003123) 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, 383273882428 + ... + 383273882461.

It is an arithmetic number, because the mean of its divisors is an integer number (3449464942005).

Almost surely, 2^{13031312003113} is an apocalyptic number.

It is an amenable number.

13031312003113 is a deficient number, since it is larger than the sum of its proper divisors (766547764907).

13031312003113 is an equidigital number, since it uses as much as digits as its factorization.

13031312003113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 766547764906.

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

Adding to 13031312003113 its reverse (31130021313031), we get a palindrome (44161333316144).

The spelling of 13031312003113 in words is "thirteen trillion, thirty-one billion, three hundred twelve million, three thousand, one hundred thirteen".