13301220332121 has 4 divisors (see below), whose sum is σ = 17734960442832. Its totient is φ = 8867480221412.

The previous prime is 13301220332093. The next prime is 13301220332129. The reversal of 13301220332121 is 12123302210331.

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 13301220332121 - 2²⁶ = 13301153223257 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 13301220332091 and 13301220332100.

It is not an unprimeable number, because it can be changed into a prime (13301220332129) 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, 2216870055351 + ... + 2216870055356.

It is an arithmetic number, because the mean of its divisors is an integer number (4433740110708).

Almost surely, 2^{13301220332121} is an apocalyptic number.

It is an amenable number.

13301220332121 is a deficient number, since it is larger than the sum of its proper divisors (4433740110711).

13301220332121 is an equidigital number, since it uses as much as digits as its factorization.

13301220332121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4433740110710.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 13301220332121 its reverse (12123302210331), we get a palindrome (25424522542452).

The spelling of 13301220332121 in words is "thirteen trillion, three hundred one billion, two hundred twenty million, three hundred thirty-two thousand, one hundred twenty-one".