12432031020 has 72 divisors (see below), whose sum is σ = 37839359376. Its totient is φ = 3303879552.

The previous prime is 12432030991. The next prime is 12432031097. The reversal of 12432031020 is 2013023421.

12432031020 is a `hidden beast` number, since 12 + 4 + 320 + 310 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 12432030984 and 12432031002.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 65122 + ... + 170601.

It is an arithmetic number, because the mean of its divisors is an integer number (525546658).

Almost surely, 2^12432031020 is an apocalyptic number.

12432031020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12432031020 is an abundant number, since it is smaller than the sum of its proper divisors (25407328356).

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

12432031020 is a wasteful number, since it uses less digits than its factorization.

12432031020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236031 (or 236026 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 12432031020 its reverse (2013023421), we get a palindrome (14445054441).

The spelling of 12432031020 in words is "twelve billion, four hundred thirty-two million, thirty-one thousand, twenty".