13220123 has 8 divisors (see below), whose sum is σ = 15133440. Its totient is φ = 11313000.

The previous prime is 13220117. The next prime is 13220131. The reversal of 13220123 is 32102231.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13220123 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13220098 and 13220107.

It is not an unprimeable number, because it can be changed into a prime (13220183) 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 in 7 ways as a sum of consecutive naturals, for example, 4748 + ... + 6998.

It is an arithmetic number, because the mean of its divisors is an integer number (1891680).

Almost surely, 2^13220123 is an apocalyptic number.

13220123 is a deficient number, since it is larger than the sum of its proper divisors (1913317).

13220123 is an equidigital number, since it uses as much as digits as its factorization.

13220123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3097.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 13220123 is about 3635.9487070089. The cubic root of 13220123 is about 236.4531833604.

Adding to 13220123 its reverse (32102231), we get a palindrome (45322354).

The spelling of 13220123 in words is "thirteen million, two hundred twenty thousand, one hundred twenty-three".