12042232312 has 16 divisors (see below), whose sum is σ = 24631839000. Its totient is φ = 5473741920.

The previous prime is 12042232273. The next prime is 12042232313. The reversal of 12042232312 is 21323224021.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12042232313) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 68421687 + ... + 68421862.

Almost surely, 2^12042232312 is an apocalyptic number.

It is an amenable number.

12042232312 is an abundant number, since it is smaller than the sum of its proper divisors (12589606688).

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

12042232312 is a wasteful number, since it uses less digits than its factorization.

12042232312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136843566 (or 136843562 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 12042232312 its reverse (21323224021), we get a palindrome (33365456333).

The spelling of 12042232312 in words is "twelve billion, forty-two million, two hundred thirty-two thousand, three hundred twelve".