13221010123 has 2 divisors, whose sum is σ = 13221010124. Its totient is φ = 13221010122.

The previous prime is 13221010111. The next prime is 13221010133. The reversal of 13221010123 is 32101012231.

It is a strong prime.

It is an emirp because it is prime and its reverse (32101012231) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13221010123 - 2¹³ = 13221001931 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13221010097 and 13221010106.

It is not a weakly prime, because it can be changed into another prime (13221010133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6610505061 + 6610505062.

It is an arithmetic number, because the mean of its divisors is an integer number (6610505062).

Almost surely, 2^13221010123 is an apocalyptic number.

13221010123 is a deficient number, since it is larger than the sum of its proper divisors (1).

13221010123 is an equidigital number, since it uses as much as digits as its factorization.

13221010123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 13221010123 its reverse (32101012231), we get a palindrome (45322022354).

The spelling of 13221010123 in words is "thirteen billion, two hundred twenty-one million, ten thousand, one hundred twenty-three".