13110111410021 has 4 divisors (see below), whose sum is σ = 13113482489100. Its totient is φ = 13106740330944.

The previous prime is 13110111409991. The next prime is 13110111410029. The reversal of 13110111410021 is 12001411101131.

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 10823244616900 + 2286866793121 = 3289870^2 + 1512239^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13110111410021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13110111410029) 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, 1685533706 + ... + 1685541483.

It is an arithmetic number, because the mean of its divisors is an integer number (3278370622275).

Almost surely, 2^{13110111410021} is an apocalyptic number.

It is an amenable number.

13110111410021 is a deficient number, since it is larger than the sum of its proper divisors (3371079079).

13110111410021 is an equidigital number, since it uses as much as digits as its factorization.

13110111410021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3371079078.

The product of its (nonzero) digits is 24, while the sum is 17.

Adding to 13110111410021 its reverse (12001411101131), we get a palindrome (25111522511152).

The spelling of 13110111410021 in words is "thirteen trillion, one hundred ten billion, one hundred eleven million, four hundred ten thousand, twenty-one".