20420042231412 has 36 divisors (see below), whose sum is σ = 51621499849920. Its totient is φ = 6806130738192.

The previous prime is 20420042231383. The next prime is 20420042231417. The reversal of 20420042231412 is 21413224002402.

It is a happy number.

20420042231412 is a `hidden beast` number, since 2 + 0 + 4 + 20 + 0 + 4 + 223 + 1 + 412 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20420042231417) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22465068 + ... + 23356355.

Almost surely, 2^{20420042231412} is an apocalyptic number.

It is an amenable number.

20420042231412 is an abundant number, since it is smaller than the sum of its proper divisors (31201457618508).

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

20420042231412 is a wasteful number, since it uses less digits than its factorization.

20420042231412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45833812 (or 45833807 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

Adding to 20420042231412 its reverse (21413224002402), we get a palindrome (41833266233814).

The spelling of 20420042231412 in words is "twenty trillion, four hundred twenty billion, forty-two million, two hundred thirty-one thousand, four hundred twelve".