12432013040 has 20 divisors (see below), whose sum is σ = 28904430504. Its totient is φ = 4972805184.

The previous prime is 12432012997. The next prime is 12432013091. The reversal of 12432013040 is 4031023421.

It is a tau number, because it is divible by the number of its divisors (20).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77700002 + ... + 77700161.

Almost surely, 2^12432013040 is an apocalyptic number.

12432013040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12432013040 is an abundant number, since it is smaller than the sum of its proper divisors (16472417464).

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

12432013040 is a wasteful number, since it uses less digits than its factorization.

12432013040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155400176 (or 155400170 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 12432013040 its reverse (4031023421), we get a palindrome (16463036461).

The spelling of 12432013040 in words is "twelve billion, four hundred thirty-two million, thirteen thousand, forty".