11231233 has 6 divisors (see below), whose sum is σ = 12161814. Its totient is φ = 10367136.

The previous prime is 11231219. The next prime is 11231243. The reversal of 11231233 is 33213211.

It can be written as a sum of positive squares in 3 ways, for example, as 288369 + 10942864 = 537^2 + 3308^2 .

It is not a de Polignac number, because 11231233 - 2⁵ = 11231201 is a prime.

It is a super-2 number, since 2×11231233² = 252281189400578, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11231243) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 33060 + ... + 33397.

It is an arithmetic number, because the mean of its divisors is an integer number (2026969).

It is a Proth number, since it is equal to 1371 ⋅ 2¹³ + 1 and 1371 < 2¹³.

Almost surely, 2^11231233 is an apocalyptic number.

11231233 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

11231233 is a deficient number, since it is larger than the sum of its proper divisors (930581).

11231233 is an equidigital number, since it uses as much as digits as its factorization.

11231233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66483 (or 66470 counting only the distinct ones).

The product of its digits is 108, while the sum is 16.

The square root of 11231233 is about 3351.3031793617. The cubic root of 11231233 is about 223.9455716504.

Adding to 11231233 its reverse (33213211), we get a palindrome (44444444).

The spelling of 11231233 in words is "eleven million, two hundred thirty-one thousand, two hundred thirty-three".