200020111 has 4 divisors (see below), whose sum is σ = 202082272. Its totient is φ = 197957952.

The previous prime is 200020103. The next prime is 200020127. The reversal of 200020111 is 111020002.

200020111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 200020111 - 2³ = 200020103 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 200020094 and 200020103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200020141) 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, 1030935 + ... + 1031128.

It is an arithmetic number, because the mean of its divisors is an integer number (50520568).

Almost surely, 2^200020111 is an apocalyptic number.

200020111 is a deficient number, since it is larger than the sum of its proper divisors (2062161).

200020111 is an equidigital number, since it uses as much as digits as its factorization.

200020111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2062160.

The product of its (nonzero) digits is 4, while the sum is 7.

The square root of 200020111 is about 14142.8466370812. The cubic root of 200020111 is about 584.8231486258.

Adding to 200020111 its reverse (111020002), we get a palindrome (311040113).

The spelling of 200020111 in words is "two hundred million, twenty thousand, one hundred eleven".