12020351244 has 48 divisors (see below), whose sum is σ = 30621392256. Its totient is φ = 3639657600.

The previous prime is 12020351243. The next prime is 12020351251. The reversal of 12020351244 is 44215302021.

It is not an unprimeable number, because it can be changed into a prime (12020351243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 135144 + ... + 205680.

It is an arithmetic number, because the mean of its divisors is an integer number (637945672).

Almost surely, 2^12020351244 is an apocalyptic number.

It is an amenable number.

12020351244 is an abundant number, since it is smaller than the sum of its proper divisors (18601041012).

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

12020351244 is a wasteful number, since it uses less digits than its factorization.

12020351244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71846 (or 71844 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

Adding to 12020351244 its reverse (44215302021), we get a palindrome (56235653265).

The spelling of 12020351244 in words is "twelve billion, twenty million, three hundred fifty-one thousand, two hundred forty-four".