13312136988 has 144 divisors (see below), whose sum is σ = 35292348000. Its totient is φ = 4226826240.

The previous prime is 13312136987. The next prime is 13312137001. The reversal of 13312136988 is 88963121331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13312136987) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 29648188 + ... + 29648636.

It is an arithmetic number, because the mean of its divisors is an integer number (245085750).

Almost surely, 2^13312136988 is an apocalyptic number.

13312136988 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13312136988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17646174000).

13312136988 is an abundant number, since it is smaller than the sum of its proper divisors (21980211012).

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

13312136988 is a wasteful number, since it uses less digits than its factorization.

13312136988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 932 (or 927 counting only the distinct ones).

The product of its digits is 186624, while the sum is 45.

The spelling of 13312136988 in words is "thirteen billion, three hundred twelve million, one hundred thirty-six thousand, nine hundred eighty-eight".