12120331344 has 160 divisors (see below), whose sum is σ = 37519027200. Its totient is φ = 3328174080.

The previous prime is 12120331337. The next prime is 12120331429. The reversal of 12120331344 is 44313302121.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 204472 + ... + 257000.

It is an arithmetic number, because the mean of its divisors is an integer number (234493920).

Almost surely, 2^12120331344 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12120331344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18759513600).

12120331344 is an abundant number, since it is smaller than the sum of its proper divisors (25398695856).

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

12120331344 is a wasteful number, since it uses less digits than its factorization.

12120331344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52593 (or 52587 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 12120331344 its reverse (44313302121), we get a palindrome (56433633465).

The spelling of 12120331344 in words is "twelve billion, one hundred twenty million, three hundred thirty-one thousand, three hundred forty-four".