12431256430 has 64 divisors (see below), whose sum is σ = 23651896320. Its totient is φ = 4694950656.

The previous prime is 12431256421. The next prime is 12431256433. The reversal of 12431256430 is 3465213421.

It is a super-2 number, since 2×12431256430² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12431256392 and 12431256401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12431256433) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9688569 + ... + 9689851.

It is an arithmetic number, because the mean of its divisors is an integer number (369560880).

Almost surely, 2^12431256430 is an apocalyptic number.

12431256430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12431256430 is a deficient number, since it is larger than the sum of its proper divisors (11220639890).

12431256430 is a wasteful number, since it uses less digits than its factorization.

12431256430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1825.

The product of its (nonzero) digits is 17280, while the sum is 31.

Adding to 12431256430 its reverse (3465213421), we get a palindrome (15896469851).

The spelling of 12431256430 in words is "twelve billion, four hundred thirty-one million, two hundred fifty-six thousand, four hundred thirty".