1223255313 has 12 divisors (see below), whose sum is σ = 2019342208. Its totient is φ = 699003000.

The previous prime is 1223255309. The next prime is 1223255329. The reversal of 1223255313 is 3135523221.

It is a happy number.

1223255313 is a `hidden beast` number, since 1 + 22 + 325 + 5 + 313 = 666.

It is not a de Polignac number, because 1223255313 - 2² = 1223255309 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1223254313) 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 11 ways as a sum of consecutive naturals, for example, 9708313 + ... + 9708438.

Almost surely, 2^1223255313 is an apocalyptic number.

It is an amenable number.

1223255313 is a deficient number, since it is larger than the sum of its proper divisors (796086895).

1223255313 is a wasteful number, since it uses less digits than its factorization.

1223255313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19416764 (or 19416761 counting only the distinct ones).

The product of its digits is 5400, while the sum is 27.

The square root of 1223255313 is about 34975.0670192353. The cubic root of 1223255313 is about 1069.4792682658.

Adding to 1223255313 its reverse (3135523221), we get a palindrome (4358778534).

The spelling of 1223255313 in words is "one billion, two hundred twenty-three million, two hundred fifty-five thousand, three hundred thirteen".