13100003131321 has 4 divisors (see below), whose sum is σ = 13137113622132. Its totient is φ = 13062892640512.

The previous prime is 13100003131307. The next prime is 13100003131333. The reversal of 13100003131321 is 12313130000131.

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 7576393875625 + 5523609255696 = 2752525^2 + 2350236^2 .

It is a cyclic number.

It is not a de Polignac number, because 13100003131321 - 2²³ = 13099994742713 is a prime.

It is a super-2 number, since 2×13100003131321² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13100003101321) 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, 18555244876 + ... + 18555245581.

It is an arithmetic number, because the mean of its divisors is an integer number (3284278405533).

Almost surely, 2^{13100003131321} is an apocalyptic number.

It is an amenable number.

13100003131321 is a deficient number, since it is larger than the sum of its proper divisors (37110490811).

13100003131321 is an equidigital number, since it uses as much as digits as its factorization.

13100003131321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37110490810.

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 13100003131321 its reverse (12313130000131), we get a palindrome (25413133131452).

The spelling of 13100003131321 in words is "thirteen trillion, one hundred billion, three million, one hundred thirty-one thousand, three hundred twenty-one".