12431128447 has 2 divisors, whose sum is σ = 12431128448. Its totient is φ = 12431128446.

The previous prime is 12431128393. The next prime is 12431128469. The reversal of 12431128447 is 74482113421.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12431128447 - 2¹⁵ = 12431095679 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12431128147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6215564223 + 6215564224.

It is an arithmetic number, because the mean of its divisors is an integer number (6215564224).

Almost surely, 2^12431128447 is an apocalyptic number.

12431128447 is a deficient number, since it is larger than the sum of its proper divisors (1).

12431128447 is an equidigital number, since it uses as much as digits as its factorization.

12431128447 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 43008, while the sum is 37.

The spelling of 12431128447 in words is "twelve billion, four hundred thirty-one million, one hundred twenty-eight thousand, four hundred forty-seven".