12231039823 has 2 divisors, whose sum is σ = 12231039824. Its totient is φ = 12231039822.

The previous prime is 12231039817. The next prime is 12231039833. The reversal of 12231039823 is 32893013221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12231039823 - 2³³ = 3641105231 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12231039833) 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 as a sum of consecutive naturals, namely, 6115519911 + 6115519912.

It is an arithmetic number, because the mean of its divisors is an integer number (6115519912).

Almost surely, 2^12231039823 is an apocalyptic number.

12231039823 is a deficient number, since it is larger than the sum of its proper divisors (1).

12231039823 is an equidigital number, since it uses as much as digits as its factorization.

12231039823 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 34.

The spelling of 12231039823 in words is "twelve billion, two hundred thirty-one million, thirty-nine thousand, eight hundred twenty-three".