1113311233 has 2 divisors, whose sum is σ = 1113311234. Its totient is φ = 1113311232.

The previous prime is 1113311207. The next prime is 1113311257. The reversal of 1113311233 is 3321133111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 851939344 + 261371889 = 29188^2 + 16167^2 .

It is an emirp because it is prime and its reverse (3321133111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1113311233 - 2¹⁷ = 1113180161 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1113311233.

It is not a weakly prime, because it can be changed into another prime (1113311203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 556655616 + 556655617.

It is an arithmetic number, because the mean of its divisors is an integer number (556655617).

Almost surely, 2^1113311233 is an apocalyptic number.

It is an amenable number.

1113311233 is a deficient number, since it is larger than the sum of its proper divisors (1).

1113311233 is an equidigital number, since it uses as much as digits as its factorization.

1113311233 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 162, while the sum is 19.

The square root of 1113311233 is about 33366.3188410109. The cubic root of 1113311233 is about 1036.4273469519.

Adding to 1113311233 its reverse (3321133111), we get a palindrome (4434444344).

It can be divided in two parts, 11133 and 11233, that added together give a triangular number (22366 = T₂₁₁).

The spelling of 1113311233 in words is "one billion, one hundred thirteen million, three hundred eleven thousand, two hundred thirty-three".