1220313130313 has 2 divisors, whose sum is σ = 1220313130314. Its totient is φ = 1220313130312.

The previous prime is 1220313130241. The next prime is 1220313130319. The reversal of 1220313130313 is 3130313130221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1187027682064 + 33285448249 = 1089508^2 + 182443^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1220313130313 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1220313130319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610156565156 + 610156565157.

It is an arithmetic number, because the mean of its divisors is an integer number (610156565157).

Almost surely, 2^{1220313130313} is an apocalyptic number.

It is an amenable number.

1220313130313 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220313130313 is an equidigital number, since it uses as much as digits as its factorization.

1220313130313 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 1220313130313 its reverse (3130313130221), we get a palindrome (4350626260534).

The spelling of 1220313130313 in words is "one trillion, two hundred twenty billion, three hundred thirteen million, one hundred thirty thousand, three hundred thirteen".