20342000402042 has 32 divisors (see below), whose sum is σ = 34021762038144. Its totient is φ = 9119701213920.

The previous prime is 20342000402021. The next prime is 20342000402057. The reversal of 20342000402042 is 24020400024302.

It is a junction number, because it is equal to n+sod(n) for n = 20342000401999 and 20342000402017.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52145558 + ... + 52534209.

It is an arithmetic number, because the mean of its divisors is an integer number (1063180063692).

Almost surely, 2^{20342000402042} is an apocalyptic number.

20342000402042 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20342000402042 is a deficient number, since it is larger than the sum of its proper divisors (13679761636102).

20342000402042 is a wasteful number, since it uses less digits than its factorization.

20342000402042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104679875 (or 104679853 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 23.

Adding to 20342000402042 its reverse (24020400024302), we get a palindrome (44362400426344).

The spelling of 20342000402042 in words is "twenty trillion, three hundred forty-two billion, four hundred two thousand, forty-two".