13321031000 has 64 divisors (see below), whose sum is σ = 31221197280. Its totient is φ = 5319868800.

The previous prime is 13321030991. The next prime is 13321031027. The reversal of 13321031000 is 13012331.

It is a super-2 number, since 2×13321031000² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

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, 632642 + ... + 653358.

Almost surely, 2^13321031000 is an apocalyptic number.

13321031000 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 13321031000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15610598640).

13321031000 is an abundant number, since it is smaller than the sum of its proper divisors (17900166280).

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

13321031000 is a wasteful number, since it uses less digits than its factorization.

13321031000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21381 (or 21367 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 14.

Adding to 13321031000 its reverse (13012331), we get a palindrome (13334043331).

The spelling of 13321031000 in words is "thirteen billion, three hundred twenty-one million, thirty-one thousand".