12020322032 has 20 divisors (see below), whose sum is σ = 24515131080. Its totient is φ = 5693836608.

The previous prime is 12020321987. The next prime is 12020322079. The reversal of 12020322032 is 23022302021.

It is a self number, because there is not a number n which added to its sum of digits gives 12020322032.

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 3 ways as a sum of consecutive naturals, for example, 19769963 + ... + 19770570.

It is an arithmetic number, because the mean of its divisors is an integer number (1225756554).

Almost surely, 2^12020322032 is an apocalyptic number.

It is an amenable number.

12020322032 is an abundant number, since it is smaller than the sum of its proper divisors (12494809048).

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

12020322032 is a wasteful number, since it uses less digits than its factorization.

12020322032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39540560 (or 39540554 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 12020322032 its reverse (23022302021), we get a palindrome (35042624053).

The spelling of 12020322032 in words is "twelve billion, twenty million, three hundred twenty-two thousand, thirty-two".