21303421200042 has 8 divisors (see below), whose sum is σ = 42606842400096. Its totient is φ = 7101140400012.

The previous prime is 21303421200013. The next prime is 21303421200101. The reversal of 21303421200042 is 24000212430312.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

21303421200042 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 21303421199985 and 21303421200021.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1775285099998 + ... + 1775285100009.

It is an arithmetic number, because the mean of its divisors is an integer number (5325855300012).

Almost surely, 2^{21303421200042} is an apocalyptic number.

21303421200042 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

21303421200042 is a wasteful number, since it uses less digits than its factorization.

21303421200042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3550570200012.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 21303421200042 its reverse (24000212430312), we get a palindrome (45303633630354).

The spelling of 21303421200042 in words is "twenty-one trillion, three hundred three billion, four hundred twenty-one million, two hundred thousand, forty-two".