1113121233 has 24 divisors (see below), whose sum is σ = 1838814848. Its totient is φ = 635625792.

The previous prime is 1113121231. The next prime is 1113121237. The reversal of 1113121233 is 3321213111.

It is not a de Polignac number, because 1113121233 - 2¹ = 1113121231 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1113121231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 99060 + ... + 109722.

Almost surely, 2^1113121233 is an apocalyptic number.

It is an amenable number.

1113121233 is a deficient number, since it is larger than the sum of its proper divisors (725693615).

1113121233 is a wasteful number, since it uses less digits than its factorization.

1113121233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12333 (or 12330 counting only the distinct ones).

The product of its digits is 108, while the sum is 18.

The square root of 1113121233 is about 33363.4715369969. The cubic root of 1113121233 is about 1036.3683839852.

Adding to 1113121233 its reverse (3321213111), we get a palindrome (4434334344).

The spelling of 1113121233 in words is "one billion, one hundred thirteen million, one hundred twenty-one thousand, two hundred thirty-three".