13330002121 has 4 divisors (see below), whose sum is σ = 14031581200. Its totient is φ = 12628423044.

The previous prime is 13330002079. The next prime is 13330002143. The reversal of 13330002121 is 12120003331.

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, and also an emirpimes, since its reverse is a distinct semiprime: 12120003331 = 563 ⋅21527537.

It is a cyclic number.

It is not a de Polignac number, because 13330002121 - 2²¹ = 13327904969 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13330002095 and 13330002104.

It is not an unprimeable number, because it can be changed into a prime (13330002151) 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, 350789511 + ... + 350789548.

It is an arithmetic number, because the mean of its divisors is an integer number (3507895300).

Almost surely, 2^13330002121 is an apocalyptic number.

It is an amenable number.

13330002121 is a deficient number, since it is larger than the sum of its proper divisors (701579079).

13330002121 is an equidigital number, since it uses as much as digits as its factorization.

13330002121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 701579078.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 13330002121 its reverse (12120003331), we get a palindrome (25450005452).

The spelling of 13330002121 in words is "thirteen billion, three hundred thirty million, two thousand, one hundred twenty-one".