211100020093 has 4 divisors (see below), whose sum is σ = 211119119680. Its totient is φ = 211080920508.

The previous prime is 211100020069. The next prime is 211100020111. The reversal of 211100020093 is 390020001112.

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-211100020093 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 211100020093.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211100020393) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9533205 + ... + 9555322.

It is an arithmetic number, because the mean of its divisors is an integer number (52779779920).

Almost surely, 2^211100020093 is an apocalyptic number.

It is an amenable number.

211100020093 is a deficient number, since it is larger than the sum of its proper divisors (19099587).

211100020093 is a wasteful number, since it uses less digits than its factorization.

211100020093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19099586.

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

The spelling of 211100020093 in words is "two hundred eleven billion, one hundred million, twenty thousand, ninety-three".