12431432442 has 64 divisors (see below), whose sum is σ = 30746903040. Its totient is φ = 3294302400.

The previous prime is 12431432441. The next prime is 12431432459. The reversal of 12431432442 is 24423413421.

It is not an unprimeable number, because it can be changed into a prime (12431432441) 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, 364984 + ... + 397587.

It is an arithmetic number, because the mean of its divisors is an integer number (480420360).

Almost surely, 2^12431432442 is an apocalyptic number.

12431432442 is an abundant number, since it is smaller than the sum of its proper divisors (18315470598).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12431432442 is a wasteful number, since it uses less digits than its factorization.

12431432442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 762619.

The product of its digits is 18432, while the sum is 30.

Adding to 12431432442 its reverse (24423413421), we get a palindrome (36854845863).

The spelling of 12431432442 in words is "twelve billion, four hundred thirty-one million, four hundred thirty-two thousand, four hundred forty-two".