12042431993 has 2 divisors, whose sum is σ = 12042431994. Its totient is φ = 12042431992.

The previous prime is 12042431987. The next prime is 12042432007. The reversal of 12042431993 is 39913424021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12000545209 + 41886784 = 109547^2 + 6472^2 .

It is a cyclic number.

It is not a de Polignac number, because 12042431993 - 2¹⁰ = 12042430969 is a prime.

It is not a weakly prime, because it can be changed into another prime (12042431953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6021215996 + 6021215997.

It is an arithmetic number, because the mean of its divisors is an integer number (6021215997).

Almost surely, 2^12042431993 is an apocalyptic number.

It is an amenable number.

12042431993 is a deficient number, since it is larger than the sum of its proper divisors (1).

12042431993 is an equidigital number, since it uses as much as digits as its factorization.

12042431993 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46656, while the sum is 38.

The spelling of 12042431993 in words is "twelve billion, forty-two million, four hundred thirty-one thousand, nine hundred ninety-three".