111241233 has 12 divisors (see below), whose sum is σ = 160900740. Its totient is φ = 74059776.

The previous prime is 111241231. The next prime is 111241253. The reversal of 111241233 is 332142111.

It can be written as a sum of positive squares in 2 ways, for example, as 31102929 + 80138304 = 5577^2 + 8952^2 .

It is not a de Polignac number, because 111241233 - 2¹ = 111241231 is a prime.

It is a super-2 number, since 2×111241233² = 24749223838720578, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (111241231) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1116 + ... + 14957.

It is an arithmetic number, because the mean of its divisors is an integer number (13408395).

Almost surely, 2^111241233 is an apocalyptic number.

It is an amenable number.

111241233 is a deficient number, since it is larger than the sum of its proper divisors (49659507).

111241233 is a wasteful number, since it uses less digits than its factorization.

111241233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16848 (or 16845 counting only the distinct ones).

The product of its digits is 144, while the sum is 18.

The square root of 111241233 is about 10547.0959510189. The cubic root of 111241233 is about 480.9374517959.

Adding to 111241233 its reverse (332142111), we get a palindrome (443383344).

It can be divided in two parts, 1112412 and 33, that multiplied together give a triangular number (36709596 = T₈₅₆₈).

The spelling of 111241233 in words is "one hundred eleven million, two hundred forty-one thousand, two hundred thirty-three".