12120018432 has 80 divisors (see below), whose sum is σ = 32543250432. Its totient is φ = 4008130560.

The previous prime is 12120018347. The next prime is 12120018467. The reversal of 12120018432 is 23481002121.

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 (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 164007 + ... + 226137.

Almost surely, 2^12120018432 is an apocalyptic number.

12120018432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12120018432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16271625216).

12120018432 is an abundant number, since it is smaller than the sum of its proper divisors (20423232000).

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

12120018432 is an equidigital number, since it uses as much as digits as its factorization.

12120018432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62279 (or 62263 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

The spelling of 12120018432 in words is "twelve billion, one hundred twenty million, eighteen thousand, four hundred thirty-two".