13333233121 has 8 divisors (see below), whose sum is σ = 14359763880. Its totient is φ = 12306830592.

The previous prime is 13333233119. The next prime is 13333233143. The reversal of 13333233121 is 12133233331.

It can be written as a sum of positive squares in 4 ways, for example, as 58736896 + 13274496225 = 7664^2 + 115215^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13333233121 - 2¹ = 13333233119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13333233181) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 383385 + ... + 416713.

It is an arithmetic number, because the mean of its divisors is an integer number (1794970485).

Almost surely, 2^13333233121 is an apocalyptic number.

It is an amenable number.

13333233121 is a deficient number, since it is larger than the sum of its proper divisors (1026530759).

13333233121 is a wasteful number, since it uses less digits than its factorization.

13333233121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64115.

The product of its digits is 2916, while the sum is 25.

Adding to 13333233121 its reverse (12133233331), we get a palindrome (25466466452).

The spelling of 13333233121 in words is "thirteen billion, three hundred thirty-three million, two hundred thirty-three thousand, one hundred twenty-one".