13021111012001 has 4 divisors (see below), whose sum is σ = 13021166064432. Its totient is φ = 13021055959572.

The previous prime is 13021111011949. The next prime is 13021111012051. The reversal of 13021111012001 is 10021011112031.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13021111012001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13021111012051) 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, 27169895 + ... + 27644988.

It is an arithmetic number, because the mean of its divisors is an integer number (3255291516108).

Almost surely, 2^{13021111012001} is an apocalyptic number.

It is an amenable number.

13021111012001 is a deficient number, since it is larger than the sum of its proper divisors (55052431).

13021111012001 is an equidigital number, since it uses as much as digits as its factorization.

13021111012001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55052430.

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 13021111012001 its reverse (10021011112031), we get a palindrome (23042122124032).

The spelling of 13021111012001 in words is "thirteen trillion, twenty-one billion, one hundred eleven million, twelve thousand, one".