42432131232 has 72 divisors (see below), whose sum is σ = 125135521056. Its totient is φ = 14144041152.

The previous prime is 42432131219. The next prime is 42432131317. The reversal of 42432131232 is 23213123424.

42432131232 is a `hidden beast` number, since 4 + 24 + 321 + 312 + 3 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 42432131196 and 42432131205.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2720628 + ... + 2736179.

It is an arithmetic number, because the mean of its divisors is an integer number (1737993348).

Almost surely, 2^42432131232 is an apocalyptic number.

It is an amenable number.

42432131232 is an abundant number, since it is smaller than the sum of its proper divisors (82703389824).

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

42432131232 is an equidigital number, since it uses as much as digits as its factorization.

42432131232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5456832 (or 5456812 counting only the distinct ones).

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

Adding to 42432131232 its reverse (23213123424), we get a palindrome (65645254656).

The spelling of 42432131232 in words is "forty-two billion, four hundred thirty-two million, one hundred thirty-one thousand, two hundred thirty-two".