12303146544 has 80 divisors (see below), whose sum is σ = 34277493600. Its totient is φ = 3780108288.

The previous prime is 12303146533. The next prime is 12303146563. The reversal of 12303146544 is 44564130321.

It is a happy number.

12303146544 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 428512 + ... + 456320.

It is an arithmetic number, because the mean of its divisors is an integer number (428468670).

Almost surely, 2^12303146544 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 12303146544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17138746800).

12303146544 is an abundant number, since it is smaller than the sum of its proper divisors (21974347056).

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

12303146544 is a wasteful number, since it uses less digits than its factorization.

12303146544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28542 (or 28536 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 33.

Adding to 12303146544 its reverse (44564130321), we get a palindrome (56867276865).

The spelling of 12303146544 in words is "twelve billion, three hundred three million, one hundred forty-six thousand, five hundred forty-four".