12331027720 has 96 divisors (see below), whose sum is σ = 31822580160. Its totient is φ = 4289014400.

The previous prime is 12331027699. The next prime is 12331027727. The reversal of 12331027720 is 2772013321.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (12331027727) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 55935 + ... + 166705.

It is an arithmetic number, because the mean of its divisors is an integer number (331485210).

Almost surely, 2^12331027720 is an apocalyptic number.

12331027720 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 12331027720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15911290080).

12331027720 is an abundant number, since it is smaller than the sum of its proper divisors (19491552440).

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

12331027720 is a wasteful number, since it uses less digits than its factorization.

12331027720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110827 (or 110812 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 28.

The spelling of 12331027720 in words is "twelve billion, three hundred thirty-one million, twenty-seven thousand, seven hundred twenty".