221034430103 has 2 divisors, whose sum is σ = 221034430104. Its totient is φ = 221034430102.

The previous prime is 221034430093. The next prime is 221034430153. The reversal of 221034430103 is 301034430122.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-221034430103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221034430153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110517215051 + 110517215052.

It is an arithmetic number, because the mean of its divisors is an integer number (110517215052).

Almost surely, 2^221034430103 is an apocalyptic number.

221034430103 is a deficient number, since it is larger than the sum of its proper divisors (1).

221034430103 is an equidigital number, since it uses as much as digits as its factorization.

221034430103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 221034430103 its reverse (301034430122), we get a palindrome (522068860225).

The spelling of 221034430103 in words is "two hundred twenty-one billion, thirty-four million, four hundred thirty thousand, one hundred three".