12131333000 has 64 divisors (see below), whose sum is σ = 28431814320. Its totient is φ = 4844928000.

The previous prime is 12131332999. The next prime is 12131333017. The reversal of 12131333000 is 33313121.

It can be written as a sum of positive squares in 8 ways, for example, as 6240004 + 12125092996 = 2498^2 + 110114^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12131333000.

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, 651824 + ... + 670176.

Almost surely, 2^12131333000 is an apocalyptic number.

12131333000 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 12131333000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14215907160).

12131333000 is an abundant number, since it is smaller than the sum of its proper divisors (16300481320).

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

12131333000 is a wasteful number, since it uses less digits than its factorization.

12131333000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19035 (or 19021 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 17.

Adding to 12131333000 its reverse (33313121), we get a palindrome (12164646121).

The spelling of 12131333000 in words is "twelve billion, one hundred thirty-one million, three hundred thirty-three thousand".