13203121232 has 20 divisors (see below), whose sum is σ = 29235482976. Its totient is φ = 5658480480.

The previous prime is 13203121207. The next prime is 13203121279. The reversal of 13203121232 is 23212130231.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58942394 + ... + 58942617.

Almost surely, 2^13203121232 is an apocalyptic number.

It is an amenable number.

13203121232 is an abundant number, since it is smaller than the sum of its proper divisors (16032361744).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13203121232 is a wasteful number, since it uses less digits than its factorization.

13203121232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117885026 (or 117885020 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 13203121232 its reverse (23212130231), we get a palindrome (36415251463).

The spelling of 13203121232 in words is "thirteen billion, two hundred three million, one hundred twenty-one thousand, two hundred thirty-two".