12031382660 has 96 divisors (see below), whose sum is σ = 28560470400. Its totient is φ = 4219504640.

The previous prime is 12031382633. The next prime is 12031382663. The reversal of 12031382660 is 6628313021.

It is a super-2 number, since 2×12031382660² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12031382663) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 679196 + ... + 696684.

It is an arithmetic number, because the mean of its divisors is an integer number (297504900).

Almost surely, 2^12031382660 is an apocalyptic number.

12031382660 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 12031382660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14280235200).

12031382660 is an abundant number, since it is smaller than the sum of its proper divisors (16529087740).

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

12031382660 is a wasteful number, since it uses less digits than its factorization.

12031382660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17621 (or 17619 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 32.

Adding to 12031382660 its reverse (6628313021), we get a palindrome (18659695681).

The spelling of 12031382660 in words is "twelve billion, thirty-one million, three hundred eighty-two thousand, six hundred sixty".