1123443211 has 8 divisors (see below), whose sum is σ = 1278860544. Its totient is φ = 976906920.

The previous prime is 1123443197. The next prime is 1123443221.

1123443211 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1123443211 - 2⁵ = 1123443179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1123443221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2219991 + ... + 2220496.

It is an arithmetic number, because the mean of its divisors is an integer number (159857568).

Almost surely, 2^1123443211 is an apocalyptic number.

1123443211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1123443211 is a deficient number, since it is larger than the sum of its proper divisors (155417333).

1123443211 is a wasteful number, since it uses less digits than its factorization.

1123443211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4440521.

The product of its digits is 576, while the sum is 22.

The square root of 1123443211 is about 33517.8043881159. The cubic root of 1123443211 is about 1039.5619490852.

It can be divided in two parts, 11234 and 43211, that added together give a palindrome (54445).

The spelling of 1123443211 in words is "one billion, one hundred twenty-three million, four hundred forty-three thousand, two hundred eleven".