12431036692409 has 2 divisors, whose sum is σ = 12431036692410. Its totient is φ = 12431036692408.

The previous prime is 12431036692379. The next prime is 12431036692411. The reversal of 12431036692409 is 90429663013421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8082990163600 + 4348046528809 = 2843060^2 + 2085197^2 .

It is a cyclic number.

It is not a de Polignac number, because 12431036692409 - 2⁸ = 12431036692153 is a prime.

Together with 12431036692411, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12431036692429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6215518346204 + 6215518346205.

It is an arithmetic number, because the mean of its divisors is an integer number (6215518346205).

Almost surely, 2^{12431036692409} is an apocalyptic number.

It is an amenable number.

12431036692409 is a deficient number, since it is larger than the sum of its proper divisors (1).

12431036692409 is an equidigital number, since it uses as much as digits as its factorization.

12431036692409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1679616, while the sum is 50.

The spelling of 12431036692409 in words is "twelve trillion, four hundred thirty-one billion, thirty-six million, six hundred ninety-two thousand, four hundred nine".