12623231729 has 2 divisors, whose sum is σ = 12623231730. Its totient is φ = 12623231728.

The previous prime is 12623231701. The next prime is 12623231743. The reversal of 12623231729 is 92713232621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12438271729 + 184960000 = 111527^2 + 13600^2 .

It is a cyclic number.

It is not a de Polignac number, because 12623231729 - 2²⁸ = 12354796273 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12623231692 and 12623231701.

It is not a weakly prime, because it can be changed into another prime (12623230729) 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, 6311615864 + 6311615865.

It is an arithmetic number, because the mean of its divisors is an integer number (6311615865).

Almost surely, 2^12623231729 is an apocalyptic number.

It is an amenable number.

12623231729 is a deficient number, since it is larger than the sum of its proper divisors (1).

12623231729 is an equidigital number, since it uses as much as digits as its factorization.

12623231729 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 54432, while the sum is 38.

The spelling of 12623231729 in words is "twelve billion, six hundred twenty-three million, two hundred thirty-one thousand, seven hundred twenty-nine".