12431431425 has 24 divisors (see below), whose sum is σ = 23489486656. Its totient is φ = 5682939840.

The previous prime is 12431431417. The next prime is 12431431429. The reversal of 12431431425 is 52413413421.

It is not a de Polignac number, because 12431431425 - 2³ = 12431431417 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12431431392 and 12431431401.

It is not an unprimeable number, because it can be changed into a prime (12431431429) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11838934 + ... + 11839983.

Almost surely, 2^12431431425 is an apocalyptic number.

12431431425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12431431425 is a deficient number, since it is larger than the sum of its proper divisors (11058055231).

12431431425 is a wasteful number, since it uses less digits than its factorization.

12431431425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23678937 (or 23678932 counting only the distinct ones).

The product of its digits is 11520, while the sum is 30.

Adding to 12431431425 its reverse (52413413421), we get a palindrome (64844844846).

The spelling of 12431431425 in words is "twelve billion, four hundred thirty-one million, four hundred thirty-one thousand, four hundred twenty-five".