13120112001 has 4 divisors (see below), whose sum is σ = 17493482672. Its totient is φ = 8746741332.

The previous prime is 13120111997. The next prime is 13120112011. The reversal of 13120112001 is 10021102131.

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 13120112001 - 2² = 13120111997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13120112011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2186685331 + ... + 2186685336.

It is an arithmetic number, because the mean of its divisors is an integer number (4373370668).

Almost surely, 2^13120112001 is an apocalyptic number.

It is an amenable number.

13120112001 is a deficient number, since it is larger than the sum of its proper divisors (4373370671).

13120112001 is an equidigital number, since it uses as much as digits as its factorization.

13120112001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4373370670.

The product of its (nonzero) digits is 12, while the sum is 12.

Adding to 13120112001 its reverse (10021102131), we get a palindrome (23141214132).

The spelling of 13120112001 in words is "thirteen billion, one hundred twenty million, one hundred twelve thousand, one".