12039251923 has 4 divisors (see below), whose sum is σ = 12156137968. Its totient is φ = 11922365880.

The previous prime is 12039251891. The next prime is 12039251927. The reversal of 12039251923 is 32915293021.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12039251923 - 2⁵ = 12039251891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12039251927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58442868 + ... + 58443073.

It is an arithmetic number, because the mean of its divisors is an integer number (3039034492).

Almost surely, 2^12039251923 is an apocalyptic number.

12039251923 is a deficient number, since it is larger than the sum of its proper divisors (116886045).

12039251923 is a wasteful number, since it uses less digits than its factorization.

12039251923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116886044.

The product of its (nonzero) digits is 29160, while the sum is 37.

The spelling of 12039251923 in words is "twelve billion, thirty-nine million, two hundred fifty-one thousand, nine hundred twenty-three".