12390213362 has 18 divisors (see below), whose sum is σ = 19211752719. Its totient is φ = 5992903260.

The previous prime is 12390213349. The next prime is 12390213389. The reversal of 12390213362 is 26331209321.

12390213362 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 6195106681 + 6195106681 = 78709^2 + 78709^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=78709.

It is a Duffinian 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 8 ways as a sum of consecutive naturals, for example, 4878689 + ... + 4881227.

Almost surely, 2^12390213362 is an apocalyptic number.

12390213362 is a deficient number, since it is larger than the sum of its proper divisors (6821539357).

12390213362 is an frugal number, since it uses more digits than its factorization.

12390213362 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5142 (or 2572 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 32.

Multiplying 12390213362 by its sum of digits (32), we get a square (396486827584 = 629672²).

The spelling of 12390213362 in words is "twelve billion, three hundred ninety million, two hundred thirteen thousand, three hundred sixty-two".