20024200000042 has 12 divisors (see below), whose sum is σ = 34940185714530. Its totient is φ = 8581799999976.

The previous prime is 20024200000027. The next prime is 20024200000109. The reversal of 20024200000042 is 24000000242002.

It can be written as a sum of positive squares in only one way, i.e., 13851862232481 + 6172337767561 = 3721809^2 + 2484419^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20024199999971 and 20024200000025.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 102164285617 + ... + 102164285812.

Almost surely, 2^{20024200000042} is an apocalyptic number.

20024200000042 is a deficient number, since it is larger than the sum of its proper divisors (14915985714488).

20024200000042 is a wasteful number, since it uses less digits than its factorization.

20024200000042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204328571445 (or 204328571438 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

Adding to 20024200000042 its reverse (24000000242002), we get a palindrome (44024200242044).

It can be divided in two parts, 200 and 24200000042, that added together give a palindrome (24200000242).

The spelling of 20024200000042 in words is "twenty trillion, twenty-four billion, two hundred million, forty-two", and thus it is an aban number.