21113000003 has 2 divisors, whose sum is σ = 21113000004. Its totient is φ = 21113000002.

The previous prime is 21112999967. The next prime is 21113000017. The reversal of 21113000003 is 30000031112.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21113000003 - 2³⁰ = 20039258179 is a prime.

It is not a weakly prime, because it can be changed into another prime (21113000303) 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, 10556500001 + 10556500002.

It is an arithmetic number, because the mean of its divisors is an integer number (10556500002).

Almost surely, 2^21113000003 is an apocalyptic number.

21113000003 is a deficient number, since it is larger than the sum of its proper divisors (1).

21113000003 is an equidigital number, since it uses as much as digits as its factorization.

21113000003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18, while the sum is 11.

Adding to 21113000003 its reverse (30000031112), we get a palindrome (51113031115).

The spelling of 21113000003 in words is "twenty-one billion, one hundred thirteen million, three", and thus it is an aban number.