13121111332 has 48 divisors (see below), whose sum is σ = 26898669952. Its totient is φ = 5483116800.

The previous prime is 13121111329. The next prime is 13121111351. The reversal of 13121111332 is 23311112131.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 714538 + ... + 732670.

Almost surely, 2^13121111332 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13121111332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13449334976).

13121111332 is an abundant number, since it is smaller than the sum of its proper divisors (13777558620).

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

13121111332 is a wasteful number, since it uses less digits than its factorization.

13121111332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18788 (or 18786 counting only the distinct ones).

The product of its digits is 108, while the sum is 19.

Adding to 13121111332 its reverse (23311112131), we get a palindrome (36432223463).

The spelling of 13121111332 in words is "thirteen billion, one hundred twenty-one million, one hundred eleven thousand, three hundred thirty-two".