12402142320 has 160 divisors (see below), whose sum is σ = 39838075200. Its totient is φ = 3187924992.

The previous prime is 12402142303. The next prime is 12402142321. The reversal of 12402142320 is 2324120421.

12402142320 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12402142321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5935836 + ... + 5937924.

It is an arithmetic number, because the mean of its divisors is an integer number (248987970).

Almost surely, 2^12402142320 is an apocalyptic number.

12402142320 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 12402142320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19919037600).

12402142320 is an abundant number, since it is smaller than the sum of its proper divisors (27435932880).

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

12402142320 is a wasteful number, since it uses less digits than its factorization.

12402142320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2987 (or 2981 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 12402142320 its reverse (2324120421), we get a palindrome (14726262741).

The spelling of 12402142320 in words is "twelve billion, four hundred two million, one hundred forty-two thousand, three hundred twenty".