12321556252 has 6 divisors (see below), whose sum is σ = 21562723448. Its totient is φ = 6160778124.

The previous prime is 12321556243. The next prime is 12321556253. The reversal of 12321556252 is 25265512321.

12321556252 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×12321556252³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12321556253) 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 as a sum of consecutive naturals, namely, 1540194528 + ... + 1540194535.

Almost surely, 2^12321556252 is an apocalyptic number.

It is an amenable number.

12321556252 is a deficient number, since it is larger than the sum of its proper divisors (9241167196).

12321556252 is a wasteful number, since it uses less digits than its factorization.

12321556252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3080389067 (or 3080389065 counting only the distinct ones).

The product of its digits is 36000, while the sum is 34.

The spelling of 12321556252 in words is "twelve billion, three hundred twenty-one million, five hundred fifty-six thousand, two hundred fifty-two".