21113342065142 has 16 divisors (see below), whose sum is σ = 32152523919264. Its totient is φ = 10396171632000.

The previous prime is 21113342065141. The next prime is 21113342065147. The reversal of 21113342065142 is 24156024331112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21113342065141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84259409 + ... + 84509612.

It is an arithmetic number, because the mean of its divisors is an integer number (2009532744954).

Almost surely, 2^{21113342065142} is an apocalyptic number.

21113342065142 is a deficient number, since it is larger than the sum of its proper divisors (11039181854122).

21113342065142 is a wasteful number, since it uses less digits than its factorization.

21113342065142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168769975.

The product of its (nonzero) digits is 34560, while the sum is 35.

Adding to 21113342065142 its reverse (24156024331112), we get a palindrome (45269366396254).

The spelling of 21113342065142 in words is "twenty-one trillion, one hundred thirteen billion, three hundred forty-two million, sixty-five thousand, one hundred forty-two".