21010210000093 has 4 divisors (see below), whose sum is σ = 21022813607040. Its totient is φ = 20997606393148.

The previous prime is 21010210000057. The next prime is 21010210000133. The reversal of 21010210000093 is 39000001201012.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21010210000093 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 21010210000093.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21010210400093) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 6301800973 + ... + 6301804306.

It is an arithmetic number, because the mean of its divisors is an integer number (5255703401760).

Almost surely, 2^{21010210000093} is an apocalyptic number.

It is an amenable number.

21010210000093 is a deficient number, since it is larger than the sum of its proper divisors (12603606947).

21010210000093 is a wasteful number, since it uses less digits than its factorization.

21010210000093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12603606946.

The product of its (nonzero) digits is 108, while the sum is 19.

The spelling of 21010210000093 in words is "twenty-one trillion, ten billion, two hundred ten million, ninety-three", and thus it is an aban number.