12431242693577 has 2 divisors, whose sum is σ = 12431242693578. Its totient is φ = 12431242693576.

The previous prime is 12431242693537. The next prime is 12431242693633. The reversal of 12431242693577 is 77539624213421.

It is an a-pointer prime, because the next prime (12431242693633) can be obtained adding 12431242693577 to its sum of digits (56).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12331166003776 + 100076689801 = 3511576^2 + 316349^2 .

It is a cyclic number.

It is not a de Polignac number, because 12431242693577 - 2⁴⁰ = 11331731065801 is a prime.

It is a super-2 number, since 2×12431242693577² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12431242693537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6215621346788 + 6215621346789.

It is an arithmetic number, because the mean of its divisors is an integer number (6215621346789).

Almost surely, 2^{12431242693577} is an apocalyptic number.

It is an amenable number.

12431242693577 is a deficient number, since it is larger than the sum of its proper divisors (1).

12431242693577 is an equidigital number, since it uses as much as digits as its factorization.

12431242693577 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15240960, while the sum is 56.

The spelling of 12431242693577 in words is "twelve trillion, four hundred thirty-one billion, two hundred forty-two million, six hundred ninety-three thousand, five hundred seventy-seven".