12431508432 has 80 divisors (see below), whose sum is σ = 36808060800. Its totient is φ = 3541648896.

The previous prime is 12431508409. The next prime is 12431508469. The reversal of 12431508432 is 23480513421.

It is a junction number, because it is equal to n+sod(n) for n = 12431508393 and 12431508402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64258 + ... + 170270.

It is an arithmetic number, because the mean of its divisors is an integer number (460100760).

Almost surely, 2^12431508432 is an apocalyptic number.

12431508432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12431508432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18404030400).

12431508432 is an abundant number, since it is smaller than the sum of its proper divisors (24376552368).

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

12431508432 is a wasteful number, since it uses less digits than its factorization.

12431508432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106380 (or 106374 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 33.

The spelling of 12431508432 in words is "twelve billion, four hundred thirty-one million, five hundred eight thousand, four hundred thirty-two".