21200083 has 2 divisors, whose sum is σ = 21200084. Its totient is φ = 21200082.

The previous prime is 21200077. The next prime is 21200093. The reversal of 21200083 is 38000212.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21200083 - 2⁵ = 21200051 is a prime.

It is not a weakly prime, because it can be changed into another prime (21200093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10600041 + 10600042.

It is an arithmetic number, because the mean of its divisors is an integer number (10600042).

Almost surely, 2^21200083 is an apocalyptic number.

21200083 is a deficient number, since it is larger than the sum of its proper divisors (1).

21200083 is an equidigital number, since it uses as much as digits as its factorization.

21200083 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 21200083 is about 4604.3547865038. The cubic root of 21200083 is about 276.7658619161.

Adding to 21200083 its reverse (38000212), we get a palindrome (59200295).

The spelling of 21200083 in words is "twenty-one million, two hundred thousand, eighty-three".