12311848639 has 4 divisors (see below), whose sum is σ = 12356296024. Its totient is φ = 12267401256.

The previous prime is 12311848609. The next prime is 12311848657. The reversal of 12311848639 is 93684811321.

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 12311848639 - 2¹³ = 12311840447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12311848609) 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, 22223277 + ... + 22223830.

It is an arithmetic number, because the mean of its divisors is an integer number (3089074006).

Almost surely, 2^12311848639 is an apocalyptic number.

12311848639 is a deficient number, since it is larger than the sum of its proper divisors (44447385).

12311848639 is an equidigital number, since it uses as much as digits as its factorization.

12311848639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44447384.

The product of its digits is 248832, while the sum is 46.

The spelling of 12311848639 in words is "twelve billion, three hundred eleven million, eight hundred forty-eight thousand, six hundred thirty-nine".