216103103 has 2 divisors, whose sum is σ = 216103104. Its totient is φ = 216103102.

The previous prime is 216103091. The next prime is 216103109. The reversal of 216103103 is 301301612.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 216103103 - 2¹⁶ = 216037567 is a prime.

It is a super-2 number, since 2×216103103² = 93401102252457218, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (216103109) 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, 108051551 + 108051552.

It is an arithmetic number, because the mean of its divisors is an integer number (108051552).

Almost surely, 2^216103103 is an apocalyptic number.

216103103 is a deficient number, since it is larger than the sum of its proper divisors (1).

216103103 is an equidigital number, since it uses as much as digits as its factorization.

216103103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 216103103 is about 14700.4456735162. The cubic root of 216103103 is about 600.0954505553.

Adding to 216103103 its reverse (301301612), we get a palindrome (517404715).

The spelling of 216103103 in words is "two hundred sixteen million, one hundred three thousand, one hundred three".