13121010121033 has 4 divisors (see below), whose sum is σ = 13123382393808. Its totient is φ = 13118637848260.

The previous prime is 13121010121019. The next prime is 13121010121049. The reversal of 13121010121033 is 33012101012131.

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 not a de Polignac number, because 13121010121033 - 2⁵ = 13121010121001 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 13121010121033.

It is not an unprimeable number, because it can be changed into a prime (13121010121133) 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, 1186128091 + ... + 1186139152.

It is an arithmetic number, because the mean of its divisors is an integer number (3280845598452).

Almost surely, 2^{13121010121033} is an apocalyptic number.

It is an amenable number.

13121010121033 is a deficient number, since it is larger than the sum of its proper divisors (2372272775).

13121010121033 is an equidigital number, since it uses as much as digits as its factorization.

13121010121033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2372272774.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 13121010121033 its reverse (33012101012131), we get a palindrome (46133111133164).

The spelling of 13121010121033 in words is "thirteen trillion, one hundred twenty-one billion, ten million, one hundred twenty-one thousand, thirty-three".