12042432312 has 32 divisors (see below), whose sum is σ = 30674123280. Its totient is φ = 3938405120.

The previous prime is 12042432277. The next prime is 12042432343. The reversal of 12042432312 is 21323424021.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4732389 + ... + 4734932.

Almost surely, 2^12042432312 is an apocalyptic number.

12042432312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12042432312 is an abundant number, since it is smaller than the sum of its proper divisors (18631690968).

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

12042432312 is a wasteful number, since it uses less digits than its factorization.

12042432312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9467383 (or 9467379 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 12042432312 its reverse (21323424021), we get a palindrome (33365856333).

The spelling of 12042432312 in words is "twelve billion, forty-two million, four hundred thirty-two thousand, three hundred twelve".