1220333113 has 2 divisors, whose sum is σ = 1220333114. Its totient is φ = 1220333112.

The previous prime is 1220333089. The next prime is 1220333123. The reversal of 1220333113 is 3113330221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 826390009 + 393943104 = 28747^2 + 19848^2 .

It is a cyclic number.

It is not a de Polignac number, because 1220333113 - 2²⁹ = 683462201 is a prime.

It is not a weakly prime, because it can be changed into another prime (1220333123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610166556 + 610166557.

It is an arithmetic number, because the mean of its divisors is an integer number (610166557).

Almost surely, 2^1220333113 is an apocalyptic number.

It is an amenable number.

1220333113 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220333113 is an equidigital number, since it uses as much as digits as its factorization.

1220333113 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 1220333113 is about 34933.2665664120. The cubic root of 1220333113 is about 1068.6269729776.

Adding to 1220333113 its reverse (3113330221), we get a palindrome (4333663334).

The spelling of 1220333113 in words is "one billion, two hundred twenty million, three hundred thirty-three thousand, one hundred thirteen".