1220311304 has 32 divisors (see below), whose sum is σ = 2305470720. Its totient is φ = 605537856.

The previous prime is 1220311291. The next prime is 1220311327. The reversal of 1220311304 is 4031130221.

It is an unprimeable number.

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, 707387 + ... + 709109.

It is an arithmetic number, because the mean of its divisors is an integer number (72045960).

Almost surely, 2^1220311304 is an apocalyptic number.

It is an amenable number.

1220311304 is a deficient number, since it is larger than the sum of its proper divisors (1085159416).

1220311304 is a wasteful number, since it uses less digits than its factorization.

1220311304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2349 (or 2345 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1220311304 is about 34932.9544127032. The cubic root of 1220311304 is about 1068.6206070042.

Adding to 1220311304 its reverse (4031130221), we get a palindrome (5251441525).

The spelling of 1220311304 in words is "one billion, two hundred twenty million, three hundred eleven thousand, three hundred four".