12431277629 has 2 divisors, whose sum is σ = 12431277630. Its totient is φ = 12431277628.

The previous prime is 12431277589. The next prime is 12431277631. The reversal of 12431277629 is 92677213421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10989328900 + 1441948729 = 104830^2 + 37973^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12431277629 is a prime.

Together with 12431277631, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12431277629.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12431277329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6215638814 + 6215638815.

It is an arithmetic number, because the mean of its divisors is an integer number (6215638815).

Almost surely, 2^12431277629 is an apocalyptic number.

It is an amenable number.

12431277629 is a deficient number, since it is larger than the sum of its proper divisors (1).

12431277629 is an equidigital number, since it uses as much as digits as its factorization.

12431277629 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 254016, while the sum is 44.

The spelling of 12431277629 in words is "twelve billion, four hundred thirty-one million, two hundred seventy-seven thousand, six hundred twenty-nine".