200021300111 has 4 divisors (see below), whose sum is σ = 200894755800. Its totient is φ = 199147844424.

The previous prime is 200021300099. The next prime is 200021300147. The reversal of 200021300111 is 111003120002.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-200021300111 is a prime.

It is a super-2 number, since 2×200021300111² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 200021300092 and 200021300101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200021302111) 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, 436727501 + ... + 436727958.

It is an arithmetic number, because the mean of its divisors is an integer number (50223688950).

Almost surely, 2^200021300111 is an apocalyptic number.

200021300111 is a deficient number, since it is larger than the sum of its proper divisors (873455689).

200021300111 is an equidigital number, since it uses as much as digits as its factorization.

200021300111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 873455688.

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 200021300111 its reverse (111003120002), we get a palindrome (311024420113).

The spelling of 200021300111 in words is "two hundred billion, twenty-one million, three hundred thousand, one hundred eleven".