1220323223 has 16 divisors (see below), whose sum is σ = 1482064704. Its totient is φ = 980881920.

The previous prime is 1220323201. The next prime is 1220323229. The reversal of 1220323223 is 3223230221.

It is a cyclic number.

It is not a de Polignac number, because 1220323223 - 2¹⁰ = 1220322199 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1220323195 and 1220323204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220323229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14453 + ... + 51473.

It is an arithmetic number, because the mean of its divisors is an integer number (92629044).

Almost surely, 2^1220323223 is an apocalyptic number.

1220323223 is a deficient number, since it is larger than the sum of its proper divisors (261741481).

1220323223 is a wasteful number, since it uses less digits than its factorization.

1220323223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37322.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 1220323223 is about 34933.1250105112. The cubic root of 1220323223 is about 1068.6240861294.

Adding to 1220323223 its reverse (3223230221), we get a palindrome (4443553444).

The spelling of 1220323223 in words is "one billion, two hundred twenty million, three hundred twenty-three thousand, two hundred twenty-three".