1220302323 has 6 divisors (see below), whose sum is σ = 1762658924. Its totient is φ = 813534876.

The previous prime is 1220302309. The next prime is 1220302331. The reversal of 1220302323 is 3232030221.

It is a happy number.

It is not a de Polignac number, because 1220302323 - 2⁸ = 1220302067 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1220302296 and 1220302305.

It is not an unprimeable number, because it can be changed into a prime (1220302333) 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 5 ways as a sum of consecutive naturals, for example, 67794565 + ... + 67794582.

Almost surely, 2^1220302323 is an apocalyptic number.

1220302323 is a deficient number, since it is larger than the sum of its proper divisors (542356601).

1220302323 is a wasteful number, since it uses less digits than its factorization.

1220302323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135589153 (or 135589150 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 1220302323 is about 34932.8258662250. The cubic root of 1220302323 is about 1068.6179854586.

Adding to 1220302323 its reverse (3232030221), we get a palindrome (4452332544).

The spelling of 1220302323 in words is "one billion, two hundred twenty million, three hundred two thousand, three hundred twenty-three".