21110200003 has 2 divisors, whose sum is σ = 21110200004. Its totient is φ = 21110200002.

The previous prime is 21110199967. The next prime is 21110200037. The reversal of 21110200003 is 30000201112.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21110200003 is a prime.

It is a super-2 number, since 2×21110200003² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (21110200063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10555100001 + 10555100002.

It is an arithmetic number, because the mean of its divisors is an integer number (10555100002).

Almost surely, 2^21110200003 is an apocalyptic number.

21110200003 is a deficient number, since it is larger than the sum of its proper divisors (1).

21110200003 is an equidigital number, since it uses as much as digits as its factorization.

21110200003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 21110200003 its reverse (30000201112), we get a palindrome (51110401115).

The spelling of 21110200003 in words is "twenty-one billion, one hundred ten million, two hundred thousand, three".