13120021112313 has 4 divisors (see below), whose sum is σ = 17493361483088. Its totient is φ = 8746680741540.

The previous prime is 13120021112299. The next prime is 13120021112339. The reversal of 13120021112313 is 31321112002131.

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 not a de Polignac number, because 13120021112313 - 2¹³ = 13120021104121 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13120021112313.

It is not an unprimeable number, because it can be changed into a prime (13120021114313) 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, 2186670185383 + ... + 2186670185388.

It is an arithmetic number, because the mean of its divisors is an integer number (4373340370772).

Almost surely, 2^{13120021112313} is an apocalyptic number.

It is an amenable number.

13120021112313 is a deficient number, since it is larger than the sum of its proper divisors (4373340370775).

13120021112313 is an equidigital number, since it uses as much as digits as its factorization.

13120021112313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4373340370774.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 13120021112313 its reverse (31321112002131), we get a palindrome (44441133114444).

The spelling of 13120021112313 in words is "thirteen trillion, one hundred twenty billion, twenty-one million, one hundred twelve thousand, three hundred thirteen".