221103110323 has 2 divisors, whose sum is σ = 221103110324. Its totient is φ = 221103110322.

The previous prime is 221103110281. The next prime is 221103110383. The reversal of 221103110323 is 323011301122.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-221103110323 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 221103110323.

It is not a weakly prime, because it can be changed into another prime (221103110383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110551555161 + 110551555162.

It is an arithmetic number, because the mean of its divisors is an integer number (110551555162).

Almost surely, 2^221103110323 is an apocalyptic number.

221103110323 is a deficient number, since it is larger than the sum of its proper divisors (1).

221103110323 is an equidigital number, since it uses as much as digits as its factorization.

221103110323 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 221103110323 its reverse (323011301122), we get a palindrome (544114411445).

The spelling of 221103110323 in words is "two hundred twenty-one billion, one hundred three million, one hundred ten thousand, three hundred twenty-three".