1111233216 has 112 divisors (see below), whose sum is σ = 3008888064. Its totient is φ = 361860096.

The previous prime is 1111233187. The next prime is 1111233217. The reversal of 1111233216 is 6123321111.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 1111233192 and 1111233201.

It is not an unprimeable number, because it can be changed into a prime (1111233217) 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, 1641070 + ... + 1641746.

It is an arithmetic number, because the mean of its divisors is an integer number (26865072).

Almost surely, 2^1111233216 is an apocalyptic number.

1111233216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1111233216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1504444032).

1111233216 is an abundant number, since it is smaller than the sum of its proper divisors (1897654848).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1111233216 is a wasteful number, since it uses less digits than its factorization.

1111233216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 878 (or 868 counting only the distinct ones).

The product of its digits is 216, while the sum is 21.

The square root of 1111233216 is about 33335.1648563495. The cubic root of 1111233216 is about 1035.7821080895.

Adding to 1111233216 its reverse (6123321111), we get a palindrome (7234554327).

The spelling of 1111233216 in words is "one billion, one hundred eleven million, two hundred thirty-three thousand, two hundred sixteen".