12232652009 has 4 divisors (see below), whose sum is σ = 12246080640. Its totient is φ = 12219223380.

The previous prime is 12232651993. The next prime is 12232652027. The reversal of 12232652009 is 90025623221.

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: 90025623221 = 278387 ⋅323383.

It is a cyclic number.

It is not a de Polignac number, because 12232652009 - 2⁴ = 12232651993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12232652609) 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, 6712949 + ... + 6714770.

It is an arithmetic number, because the mean of its divisors is an integer number (3061520160).

Almost surely, 2^12232652009 is an apocalyptic number.

It is an amenable number.

12232652009 is a deficient number, since it is larger than the sum of its proper divisors (13428631).

12232652009 is an equidigital number, since it uses as much as digits as its factorization.

12232652009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13428630.

The product of its (nonzero) digits is 12960, while the sum is 32.

The spelling of 12232652009 in words is "twelve billion, two hundred thirty-two million, six hundred fifty-two thousand, nine".