121321033013013 has 4 divisors (see below), whose sum is σ = 161761377350688. Its totient is φ = 80880688675340.

The previous prime is 121321033012999. The next prime is 121321033013027. The reversal of 121321033013013 is 310310330123121.

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 an interprime number because it is at equal distance from previous prime (121321033012999) and next prime (121321033013027).

It is a cyclic number.

It is not a de Polignac number, because 121321033013013 - 2⁴ = 121321033012997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121321033013093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20220172168833 + ... + 20220172168838.

It is an arithmetic number, because the mean of its divisors is an integer number (40440344337672).

Almost surely, 2^{121321033013013} is an apocalyptic number.

It is an amenable number.

121321033013013 is a deficient number, since it is larger than the sum of its proper divisors (40440344337675).

121321033013013 is an equidigital number, since it uses as much as digits as its factorization.

121321033013013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40440344337674.

The product of its (nonzero) digits is 972, while the sum is 24.

Adding to 121321033013013 its reverse (310310330123121), we get a palindrome (431631363136134).

The spelling of 121321033013013 in words is "one hundred twenty-one trillion, three hundred twenty-one billion, thirty-three million, thirteen thousand, thirteen".