221323132103 has 4 divisors (see below), whose sum is σ = 221453862168. Its totient is φ = 221192402040.

The previous prime is 221323132097. The next prime is 221323132183. The reversal of 221323132103 is 301231323122.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 221323132103 - 2¹⁰ = 221323131079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221323132183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65362493 + ... + 65365878.

It is an arithmetic number, because the mean of its divisors is an integer number (55363465542).

Almost surely, 2^221323132103 is an apocalyptic number.

221323132103 is a deficient number, since it is larger than the sum of its proper divisors (130730065).

221323132103 is a wasteful number, since it uses less digits than its factorization.

221323132103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130730064.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 221323132103 its reverse (301231323122), we get a palindrome (522554455225).

The spelling of 221323132103 in words is "two hundred twenty-one billion, three hundred twenty-three million, one hundred thirty-two thousand, one hundred three".