1113212233 has 6 divisors (see below), whose sum is σ = 1294961226. Its totient is φ = 954181872.

The previous prime is 1113212137. The next prime is 1113212273. The reversal of 1113212233 is 3322123111.

It can be written as a sum of positive squares in only one way, i.e., 889649929 + 223562304 = 29827^2 + 14952^2 .

It is not a de Polignac number, because 1113212233 - 2¹³ = 1113204041 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1113212233.

It is not an unprimeable number, because it can be changed into a prime (1113212273) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11359260 + ... + 11359357.

It is an arithmetic number, because the mean of its divisors is an integer number (215826871).

Almost surely, 2^1113212233 is an apocalyptic number.

It is an amenable number.

1113212233 is a deficient number, since it is larger than the sum of its proper divisors (181748993).

1113212233 is an equidigital number, since it uses as much as digits as its factorization.

1113212233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22718631 (or 22718624 counting only the distinct ones).

The product of its digits is 216, while the sum is 19.

The square root of 1113212233 is about 33364.8352760807. The cubic root of 1113212233 is about 1036.3966249801.

Adding to 1113212233 its reverse (3322123111), we get a palindrome (4435335344).

The spelling of 1113212233 in words is "one billion, one hundred thirteen million, two hundred twelve thousand, two hundred thirty-three".