13221321103 has 2 divisors, whose sum is σ = 13221321104. Its totient is φ = 13221321102.

The previous prime is 13221321097. The next prime is 13221321119. The reversal of 13221321103 is 30112312231.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13221321103 - 2⁹ = 13221320591 is a prime.

It is a super-3 number, since 3×13221321103³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13221321163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6610660551 + 6610660552.

It is an arithmetic number, because the mean of its divisors is an integer number (6610660552).

Almost surely, 2^13221321103 is an apocalyptic number.

13221321103 is a deficient number, since it is larger than the sum of its proper divisors (1).

13221321103 is an equidigital number, since it uses as much as digits as its factorization.

13221321103 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 13221321103 its reverse (30112312231), we get a palindrome (43333633334).

The spelling of 13221321103 in words is "thirteen billion, two hundred twenty-one million, three hundred twenty-one thousand, one hundred three".