12142420032 has 28 divisors (see below), whose sum is σ = 32126820176. Its totient is φ = 4047473280.

The previous prime is 12142420007. The next prime is 12142420049. The reversal of 12142420032 is 23002424121.

It is a junction number, because it is equal to n+sod(n) for n = 12142419990 and 12142420008.

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, 31620694 + ... + 31621077.

Almost surely, 2^12142420032 is an apocalyptic number.

12142420032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12142420032 is an abundant number, since it is smaller than the sum of its proper divisors (19984400144).

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

12142420032 is an equidigital number, since it uses as much as digits as its factorization.

12142420032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63241786 (or 63241776 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 12142420032 its reverse (23002424121), we get a palindrome (35144844153).

The spelling of 12142420032 in words is "twelve billion, one hundred forty-two million, four hundred twenty thousand, thirty-two".