12023321129 has 2 divisors, whose sum is σ = 12023321130. Its totient is φ = 12023321128.

The previous prime is 12023321071. The next prime is 12023321159. The reversal of 12023321129 is 92112332021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9800010025 + 2223311104 = 98995^2 + 47152^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12023321129 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12023321098 and 12023321107.

It is not a weakly prime, because it can be changed into another prime (12023321159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6011660564 + 6011660565.

It is an arithmetic number, because the mean of its divisors is an integer number (6011660565).

Almost surely, 2^12023321129 is an apocalyptic number.

It is an amenable number.

12023321129 is a deficient number, since it is larger than the sum of its proper divisors (1).

12023321129 is an equidigital number, since it uses as much as digits as its factorization.

12023321129 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 26.

The spelling of 12023321129 in words is "twelve billion, twenty-three million, three hundred twenty-one thousand, one hundred twenty-nine".