1113321211 has 4 divisors (see below), whose sum is σ = 1178810712. Its totient is φ = 1047831712.

The previous prime is 1113321199. The next prime is 1113321227. The reversal of 1113321211 is 1121233111.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1113321211 - 2⁵ = 1113321179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1113321241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32744725 + ... + 32744758.

It is an arithmetic number, because the mean of its divisors is an integer number (294702678).

Almost surely, 2^1113321211 is an apocalyptic number.

1113321211 is a deficient number, since it is larger than the sum of its proper divisors (65489501).

1113321211 is an equidigital number, since it uses as much as digits as its factorization.

1113321211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65489500.

The product of its digits is 36, while the sum is 16.

The square root of 1113321211 is about 33366.4683627141. The cubic root of 1113321211 is about 1036.4304432532.

Adding to 1113321211 its reverse (1121233111), we get a palindrome (2234554322).

The spelling of 1113321211 in words is "one billion, one hundred thirteen million, three hundred twenty-one thousand, two hundred eleven".