1220230313 has 2 divisors, whose sum is σ = 1220230314. Its totient is φ = 1220230312.

The previous prime is 1220230283. The next prime is 1220230321. The reversal of 1220230313 is 3130320221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 770451049 + 449779264 = 27757^2 + 21208^2 .

It is a cyclic number.

It is not a de Polignac number, because 1220230313 - 2¹⁰ = 1220229289 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1220230291 and 1220230300.

It is not a weakly prime, because it can be changed into another prime (1220230373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610115156 + 610115157.

It is an arithmetic number, because the mean of its divisors is an integer number (610115157).

Almost surely, 2^1220230313 is an apocalyptic number.

It is an amenable number.

1220230313 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220230313 is an equidigital number, since it uses as much as digits as its factorization.

1220230313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 1220230313 is about 34931.7951585658. The cubic root of 1220230313 is about 1068.5969653410.

Adding to 1220230313 its reverse (3130320221), we get a palindrome (4350550534).

The spelling of 1220230313 in words is "one billion, two hundred twenty million, two hundred thirty thousand, three hundred thirteen".