12012020032 has 28 divisors (see below), whose sum is σ = 23872606560. Its totient is φ = 5996875136.

The previous prime is 12012019973. The next prime is 12012020063. The reversal of 12012020032 is 23002021021.

It is a junction number, because it is equal to n+sod(n) for n = 12012019994 and 12012020021.

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, 100228 + ... + 184579.

Almost surely, 2^12012020032 is an apocalyptic number.

It is an amenable number.

12012020032 is a deficient number, since it is larger than the sum of its proper divisors (11860586528).

12012020032 is an equidigital number, since it uses as much as digits as its factorization.

12012020032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285478 (or 285468 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 12012020032 its reverse (23002021021), we get a palindrome (35014041053).

The spelling of 12012020032 in words is "twelve billion, twelve million, twenty thousand, thirty-two".