13020121223 has 2 divisors, whose sum is σ = 13020121224. Its totient is φ = 13020121222.

The previous prime is 13020121199. The next prime is 13020121259. The reversal of 13020121223 is 32212102031.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13020121223 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13020121423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6510060611 + 6510060612.

It is an arithmetic number, because the mean of its divisors is an integer number (6510060612).

Almost surely, 2^13020121223 is an apocalyptic number.

13020121223 is a deficient number, since it is larger than the sum of its proper divisors (1).

13020121223 is an equidigital number, since it uses as much as digits as its factorization.

13020121223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 13020121223 its reverse (32212102031), we get a palindrome (45232223254).

The spelling of 13020121223 in words is "thirteen billion, twenty million, one hundred twenty-one thousand, two hundred twenty-three".