12431420433 has 8 divisors (see below), whose sum is σ = 18416919200. Its totient is φ = 8287613604.

The previous prime is 12431420413. The next prime is 12431420437. The reversal of 12431420433 is 33402413421.

It is not a de Polignac number, because 12431420433 - 2⁶ = 12431420369 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 460422979 = 12431420433 / (1 + 2 + 4 + 3 + 1 + 4 + 2 + 0 + 4 + 3 + 3).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12431420397 and 12431420406.

It is not an unprimeable number, because it can be changed into a prime (12431420437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 230211463 + ... + 230211516.

It is an arithmetic number, because the mean of its divisors is an integer number (2302114900).

Almost surely, 2^12431420433 is an apocalyptic number.

It is an amenable number.

12431420433 is a deficient number, since it is larger than the sum of its proper divisors (5985498767).

12431420433 is an equidigital number, since it uses as much as digits as its factorization.

12431420433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460422988 (or 460422982 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 12431420433 its reverse (33402413421), we get a palindrome (45833833854).

The spelling of 12431420433 in words is "twelve billion, four hundred thirty-one million, four hundred twenty thousand, four hundred thirty-three".