1223331113 has 2 divisors, whose sum is σ = 1223331114. Its totient is φ = 1223331112.

The previous prime is 1223331097. The next prime is 1223331133. The reversal of 1223331113 is 3111333221.

It is an a-pointer prime, because the next prime (1223331133) can be obtained adding 1223331113 to its sum of digits (20).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1221362704 + 1968409 = 34948^2 + 1403^2 .

It is an emirp because it is prime and its reverse (3111333221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1223331113 - 2⁴ = 1223331097 is a prime.

It is not a weakly prime, because it can be changed into another prime (1223331133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611665556 + 611665557.

It is an arithmetic number, because the mean of its divisors is an integer number (611665557).

Almost surely, 2^1223331113 is an apocalyptic number.

It is an amenable number.

1223331113 is a deficient number, since it is larger than the sum of its proper divisors (1).

1223331113 is an equidigital number, since it uses as much as digits as its factorization.

1223331113 is an evil number, because the sum of its binary digits is even.

The product of its digits is 324, while the sum is 20.

The square root of 1223331113 is about 34976.1506315375. The cubic root of 1223331113 is about 1069.5013581908.

Adding to 1223331113 its reverse (3111333221), we get a palindrome (4334664334).

The spelling of 1223331113 in words is "one billion, two hundred twenty-three million, three hundred thirty-one thousand, one hundred thirteen".