221130103 has 2 divisors, whose sum is σ = 221130104. Its totient is φ = 221130102.

The previous prime is 221130089. The next prime is 221130109. The reversal of 221130103 is 301031122.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 221130103 - 2⁵ = 221130071 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221130109) 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, 110565051 + 110565052.

It is an arithmetic number, because the mean of its divisors is an integer number (110565052).

Almost surely, 2^221130103 is an apocalyptic number.

221130103 is a deficient number, since it is larger than the sum of its proper divisors (1).

221130103 is an equidigital number, since it uses as much as digits as its factorization.

221130103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 221130103 is about 14870.4439409185. The cubic root of 221130103 is about 604.7129781674.

Adding to 221130103 its reverse (301031122), we get a palindrome (522161225).

The spelling of 221130103 in words is "two hundred twenty-one million, one hundred thirty thousand, one hundred three".