21123545534714 has 16 divisors (see below), whose sum is σ = 38341897777728. Its totient is φ = 8520421728192.

The previous prime is 21123545534657. The next prime is 21123545534743. The reversal of 21123545534714 is 41743554532112.

It is a Curzon 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, 44377196264 + ... + 44377196739.

It is an arithmetic number, because the mean of its divisors is an integer number (2396368611108).

Almost surely, 2^{21123545534714} is an apocalyptic number.

21123545534714 is a deficient number, since it is larger than the sum of its proper divisors (17218352243014).

21123545534714 is a wasteful number, since it uses less digits than its factorization.

21123545534714 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88754393029.

The product of its digits is 2016000, while the sum is 47.

The spelling of 21123545534714 in words is "twenty-one trillion, one hundred twenty-three billion, five hundred forty-five million, five hundred thirty-four thousand, seven hundred fourteen".