1220310313 has 4 divisors (see below), whose sum is σ = 1220517520. Its totient is φ = 1220103108.

The previous prime is 1220310293. The next prime is 1220310349. The reversal of 1220310313 is 3130130221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1220310313 - 2⁵ = 1220310281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1220314313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94503 + ... + 106636.

It is an arithmetic number, because the mean of its divisors is an integer number (305129380).

Almost surely, 2^1220310313 is an apocalyptic number.

It is an amenable number.

1220310313 is a deficient number, since it is larger than the sum of its proper divisors (207207).

1220310313 is an equidigital number, since it uses as much as digits as its factorization.

1220310313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207206.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 1220310313 is about 34932.9402283862. The cubic root of 1220310313 is about 1068.6203177328.

Adding to 1220310313 its reverse (3130130221), we get a palindrome (4350440534).

The spelling of 1220310313 in words is "one billion, two hundred twenty million, three hundred ten thousand, three hundred thirteen".