13220023 has 2 divisors, whose sum is σ = 13220024. Its totient is φ = 13220022.

The previous prime is 13220021. The next prime is 13220041. The reversal of 13220023 is 32002231.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13220023 - 2¹ = 13220021 is a prime.

Together with 13220021, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 13219985 and 13220012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13220021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6610011 + 6610012.

It is an arithmetic number, because the mean of its divisors is an integer number (6610012).

Almost surely, 2^13220023 is an apocalyptic number.

13220023 is a deficient number, since it is larger than the sum of its proper divisors (1).

13220023 is an equidigital number, since it uses as much as digits as its factorization.

13220023 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 13.

The square root of 13220023 is about 3635.9349554138. The cubic root of 13220023 is about 236.4525871637.

Adding to 13220023 its reverse (32002231), we get a palindrome (45222254).

The spelling of 13220023 in words is "thirteen million, two hundred twenty thousand, twenty-three".