1220322313 has 16 divisors (see below), whose sum is σ = 1427356800. Its totient is φ = 1042874448.

The previous prime is 1220322287. The next prime is 1220322317. The reversal of 1220322313 is 3132230221.

It is not a de Polignac number, because 1220322313 - 2¹⁷ = 1220191241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1220322317) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 113895 + ... + 124147.

It is an arithmetic number, because the mean of its divisors is an integer number (89209800).

Almost surely, 2^1220322313 is an apocalyptic number.

It is an amenable number.

1220322313 is a deficient number, since it is larger than the sum of its proper divisors (207034487).

1220322313 is an equidigital number, since it uses as much as digits as its factorization.

1220322313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10621 (or 10607 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 1220322313 is about 34933.1119856219. Note that the first 3 decimals coincide. The cubic root of 1220322313 is about 1068.6238205036.

Adding to 1220322313 its reverse (3132230221), we get a palindrome (4352552534).

The spelling of 1220322313 in words is "one billion, two hundred twenty million, three hundred twenty-two thousand, three hundred thirteen".