211120093 has 4 divisors (see below), whose sum is σ = 223538940. Its totient is φ = 198701248.

The previous prime is 211120079. The next prime is 211120109. The reversal of 211120093 is 390021112.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 68508729 + 142611364 = 8277^2 + 11942^2 .

It is a cyclic number.

It is not a de Polignac number, because 211120093 - 2⁵ = 211120061 is a prime.

It is a super-3 number, since 3×211120093³ (a number of 26 digits) contains 333 as substring.

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 211120093.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211120003) 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, 6209398 + ... + 6209431.

It is an arithmetic number, because the mean of its divisors is an integer number (55884735).

Almost surely, 2^211120093 is an apocalyptic number.

It is an amenable number.

211120093 is a deficient number, since it is larger than the sum of its proper divisors (12418847).

211120093 is a wasteful number, since it uses less digits than its factorization.

211120093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12418846.

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

The square root of 211120093 is about 14529.9722298427. The cubic root of 211120093 is about 595.4471069189.

The spelling of 211120093 in words is "two hundred eleven million, one hundred twenty thousand, ninety-three".