13331000000 has 98 divisors (see below), whose sum is σ = 33069186084. Its totient is φ = 5332000000.

The previous prime is 13330999991. The next prime is 13331000003. The reversal of 13331000000 is 13331.

It is a super-2 number, since 2×13331000000² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13331000003) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 993335 + ... + 1006665.

Almost surely, 2^13331000000 is an apocalyptic number.

13331000000 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 13331000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16534593042).

13331000000 is an abundant number, since it is smaller than the sum of its proper divisors (19738186084).

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

13331000000 is an frugal number, since it uses more digits than its factorization.

13331000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13373 (or 13338 counting only the distinct ones).

The product of its (nonzero) digits is 27, while the sum is 11.

Adding to 13331000000 its reverse (13331), we get a palindrome (13331013331).

Multiplying 13331000000 by its reverse (13331), we get a square (177715561000000 = 13331000²).

13331000000 divided by its reverse (13331) gives a 6-th power (1000000 = 10⁶).

The spelling of 13331000000 in words is "thirteen billion, three hundred thirty-one million", and thus it is an aban number.