12495074321 has 4 divisors (see below), whose sum is σ = 12495301632. Its totient is φ = 12494847012.

The previous prime is 12495074309. The next prime is 12495074353. The reversal of 12495074321 is 12347059421.

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 12495074321 - 2¹⁸ = 12494812177 is a prime.

It is a super-2 number, since 2×12495074321² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12495074521) 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, 26000 + ... + 160206.

It is an arithmetic number, because the mean of its divisors is an integer number (3123825408).

Almost surely, 2^12495074321 is an apocalyptic number.

It is an amenable number.

12495074321 is a deficient number, since it is larger than the sum of its proper divisors (227311).

12495074321 is an equidigital number, since it uses as much as digits as its factorization.

12495074321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227310.

The product of its (nonzero) digits is 60480, while the sum is 38.

The spelling of 12495074321 in words is "twelve billion, four hundred ninety-five million, seventy-four thousand, three hundred twenty-one".