12124778320 has 40 divisors (see below), whose sum is σ = 28198525536. Its totient is φ = 4848463488.

The previous prime is 12124778317. The next prime is 12124778333. The reversal of 12124778320 is 2387742121.

12124778320 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 12124778320.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 270639 + ... + 312241.

Almost surely, 2^12124778320 is an apocalyptic number.

12124778320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12124778320 is an abundant number, since it is smaller than the sum of its proper divisors (16073747216).

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

12124778320 is a wasteful number, since it uses less digits than its factorization.

12124778320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45259 (or 45253 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 37.

The spelling of 12124778320 in words is "twelve billion, one hundred twenty-four million, seven hundred seventy-eight thousand, three hundred twenty".