1123313211 has 16 divisors (see below), whose sum is σ = 1672888320. Its totient is φ = 744951240.

The previous prime is 1123313201. The next prime is 1123313221. The reversal of 1123313211 is 1123133211.

1123313211 is a `hidden beast` number, since 1 + 12 + 331 + 321 + 1 = 666.

1123313211 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (1123313201) and next prime (1123313221).

It is not a de Polignac number, because 1123313211 - 2⁷ = 1123313083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1123313201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103755 + ... + 114068.

It is an arithmetic number, because the mean of its divisors is an integer number (104555520).

Almost surely, 2^1123313211 is an apocalyptic number.

1123313211 is a deficient number, since it is larger than the sum of its proper divisors (549575109).

1123313211 is a wasteful number, since it uses less digits than its factorization.

1123313211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218023 (or 218017 counting only the distinct ones).

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

The square root of 1123313211 is about 33515.8650641752. The cubic root of 1123313211 is about 1039.5218496643.

Adding to 1123313211 its reverse (1123133211), we get a palindrome (2246446422).

The spelling of 1123313211 in words is "one billion, one hundred twenty-three million, three hundred thirteen thousand, two hundred eleven".