12252541321 has 4 divisors (see below), whose sum is σ = 12316690944. Its totient is φ = 12188391700.

The previous prime is 12252541319. The next prime is 12252541349. The reversal of 12252541321 is 12314525221.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12252541321 - 2¹ = 12252541319 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12252541321.

It is not an unprimeable number, because it can be changed into a prime (12252541421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32074525 + ... + 32074906.

It is an arithmetic number, because the mean of its divisors is an integer number (3079172736).

Almost surely, 2^12252541321 is an apocalyptic number.

It is an amenable number.

12252541321 is a deficient number, since it is larger than the sum of its proper divisors (64149623).

12252541321 is an equidigital number, since it uses as much as digits as its factorization.

12252541321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64149622.

The product of its digits is 4800, while the sum is 28.

The spelling of 12252541321 in words is "twelve billion, two hundred fifty-two million, five hundred forty-one thousand, three hundred twenty-one".