21234200003 has 2 divisors, whose sum is σ = 21234200004. Its totient is φ = 21234200002.

The previous prime is 21234199933. The next prime is 21234200021. The reversal of 21234200003 is 30000243212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21234200003 - 2¹⁸ = 21233937859 is a prime.

It is not a weakly prime, because it can be changed into another prime (21234200083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10617100001 + 10617100002.

It is an arithmetic number, because the mean of its divisors is an integer number (10617100002).

Almost surely, 2^21234200003 is an apocalyptic number.

21234200003 is a deficient number, since it is larger than the sum of its proper divisors (1).

21234200003 is an equidigital number, since it uses as much as digits as its factorization.

21234200003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 21234200003 its reverse (30000243212), we get a palindrome (51234443215).

The spelling of 21234200003 in words is "twenty-one billion, two hundred thirty-four million, two hundred thousand, three".