13231102320 has 240 divisors, whose sum is σ = 46501389792. Its totient is φ = 3367802880.

The previous prime is 13231102307. The next prime is 13231102327. The reversal of 13231102320 is 2320113231.

13231102320 is a `hidden beast` number, since 1 + 32 + 311 + 0 + 2 + 320 = 666.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 13231102293 and 13231102302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13231102327) 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, 1407235 + ... + 1416605.

Almost surely, 2^13231102320 is an apocalyptic number.

13231102320 is a gapful number since it is divisible by the number (10) 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 13231102320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23250694896).

13231102320 is an abundant number, since it is smaller than the sum of its proper divisors (33270287472).

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

13231102320 is a wasteful number, since it uses less digits than its factorization.

13231102320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9480 (or 9471 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 13231102320 its reverse (2320113231), we get a palindrome (15551215551).

The spelling of 13231102320 in words is "thirteen billion, two hundred thirty-one million, one hundred two thousand, three hundred twenty".