211020193 has 8 divisors (see below), whose sum is σ = 227298816. Its totient is φ = 195333600.

The previous prime is 211020163. The next prime is 211020233. The reversal of 211020193 is 391020112.

211020193 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 211020193 - 2¹⁷ = 210889121 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 211020193.

It is not an unprimeable number, because it can be changed into a prime (211020143) 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, 147268 + ... + 148693.

It is an arithmetic number, because the mean of its divisors is an integer number (28412352).

Almost surely, 2^211020193 is an apocalyptic number.

211020193 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

211020193 is a deficient number, since it is larger than the sum of its proper divisors (16278623).

211020193 is a wasteful number, since it uses less digits than its factorization.

211020193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296015.

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

The square root of 211020193 is about 14526.5341014297. The cubic root of 211020193 is about 595.3531721506.

The spelling of 211020193 in words is "two hundred eleven million, twenty thousand, one hundred ninety-three".