13233232121 has 16 divisors (see below), whose sum is σ = 13915359360. Its totient is φ = 12567018240.

The previous prime is 13233232049. The next prime is 13233232141. The reversal of 13233232121 is 12123233231.

It is a cyclic number.

It is not a de Polignac number, because 13233232121 - 2¹⁰ = 13233231097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13233232141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 884126 + ... + 898968.

It is an arithmetic number, because the mean of its divisors is an integer number (869709960).

Almost surely, 2^13233232121 is an apocalyptic number.

It is an amenable number.

13233232121 is a deficient number, since it is larger than the sum of its proper divisors (682127239).

13233232121 is a wasteful number, since it uses less digits than its factorization.

13233232121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15376.

The product of its digits is 1296, while the sum is 23.

Adding to 13233232121 its reverse (12123233231), we get a palindrome (25356465352).

The spelling of 13233232121 in words is "thirteen billion, two hundred thirty-three million, two hundred thirty-two thousand, one hundred twenty-one".