12020344142 has 16 divisors (see below), whose sum is σ = 18821405472. Its totient is φ = 5751868320.

The previous prime is 12020344123. The next prime is 12020344159. The reversal of 12020344142 is 24144302021.

It is a super-3 number, since 3×12020344142³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1326938 + ... + 1335965.

It is an arithmetic number, because the mean of its divisors is an integer number (1176337842).

Almost surely, 2^12020344142 is an apocalyptic number.

12020344142 is a deficient number, since it is larger than the sum of its proper divisors (6801061330).

12020344142 is a wasteful number, since it uses less digits than its factorization.

12020344142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2663003.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 12020344142 its reverse (24144302021), we get a palindrome (36164646163).

The spelling of 12020344142 in words is "twelve billion, twenty million, three hundred forty-four thousand, one hundred forty-two".