12274203509 has 4 divisors (see below), whose sum is σ = 12920214240. Its totient is φ = 11628192780.

The previous prime is 12274203503. The next prime is 12274203521. The reversal of 12274203509 is 90530247221.

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, and also an emirpimes, since its reverse is a distinct semiprime: 90530247221 = 89 ⋅1017193789.

It is a cyclic number.

It is not a de Polignac number, because 12274203509 - 2⁴ = 12274203493 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12274203503) 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, 323005337 + ... + 323005374.

It is an arithmetic number, because the mean of its divisors is an integer number (3230053560).

Almost surely, 2^12274203509 is an apocalyptic number.

12274203509 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

12274203509 is a deficient number, since it is larger than the sum of its proper divisors (646010731).

12274203509 is an equidigital number, since it uses as much as digits as its factorization.

12274203509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 646010730.

The product of its (nonzero) digits is 30240, while the sum is 35.

The spelling of 12274203509 in words is "twelve billion, two hundred seventy-four million, two hundred three thousand, five hundred nine".