200102111 has 4 divisors (see below), whose sum is σ = 218293224. Its totient is φ = 181911000.

The previous prime is 200102101. The next prime is 200102113. The reversal of 200102111 is 111201002.

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

It is a cyclic number.

It is not a de Polignac number, because 200102111 - 2¹⁴ = 200085727 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200102113) 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, 9095540 + ... + 9095561.

It is an arithmetic number, because the mean of its divisors is an integer number (54573306).

Almost surely, 2^200102111 is an apocalyptic number.

200102111 is a deficient number, since it is larger than the sum of its proper divisors (18191113).

200102111 is a wasteful number, since it uses less digits than its factorization.

200102111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18191112.

The product of its (nonzero) digits is 4, while the sum is 8.

The square root of 200102111 is about 14145.7453320778. The cubic root of 200102111 is about 584.9030555015.

Adding to 200102111 its reverse (111201002), we get a palindrome (311303113).

The spelling of 200102111 in words is "two hundred million, one hundred two thousand, one hundred eleven".