13231522000 has 80 divisors (see below), whose sum is σ = 32046837264. Its totient is φ = 5283840000.

The previous prime is 13231521907. The next prime is 13231522019. The reversal of 13231522000 is 22513231.

It can be written as a sum of positive squares in 8 ways, for example, as 1480094784 + 11751427216 = 38472^2 + 108404^2 .

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1276840 + ... + 1287160.

Almost surely, 2^13231522000 is an apocalyptic number.

13231522000 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 13231522000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16023418632).

13231522000 is an abundant number, since it is smaller than the sum of its proper divisors (18815315264).

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

13231522000 is a wasteful number, since it uses less digits than its factorization.

13231522000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10985 (or 10969 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

The spelling of 13231522000 in words is "thirteen billion, two hundred thirty-one million, five hundred twenty-two thousand".