21303341212142 has 16 divisors (see below), whose sum is σ = 34860084922800. Its totient is φ = 9683316906240.

The previous prime is 21303341212079. The next prime is 21303341212151. The reversal of 21303341212142 is 24121214330312.

It is a happy number.

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, 17452484 + ... + 18633192.

It is an arithmetic number, because the mean of its divisors is an integer number (2178755307675).

Almost surely, 2^{21303341212142} is an apocalyptic number.

21303341212142 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21303341212142 is a deficient number, since it is larger than the sum of its proper divisors (13556743710658).

21303341212142 is a wasteful number, since it uses less digits than its factorization.

21303341212142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2000851.

The product of its (nonzero) digits is 6912, while the sum is 29.

Adding to 21303341212142 its reverse (24121214330312), we get a palindrome (45424555542454).

The spelling of 21303341212142 in words is "twenty-one trillion, three hundred three billion, three hundred forty-one million, two hundred twelve thousand, one hundred forty-two".