11520233 has 4 divisors (see below), whose sum is σ = 11597700. Its totient is φ = 11442768.

The previous prime is 11520227. The next prime is 11520269. The reversal of 11520233 is 33202511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 33202511 = 71 ⋅467641.

It can be written as a sum of positive squares in 2 ways, for example, as 4380649 + 7139584 = 2093^2 + 2672^2 .

It is a cyclic number.

It is not a de Polignac number, because 11520233 - 2¹² = 11516137 is a prime.

It is a super-3 number, since 3×11520233³ (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11520293) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38510 + ... + 38807.

It is an arithmetic number, because the mean of its divisors is an integer number (2899425).

Almost surely, 2^11520233 is an apocalyptic number.

It is an amenable number.

11520233 is a deficient number, since it is larger than the sum of its proper divisors (77467).

11520233 is an equidigital number, since it uses as much as digits as its factorization.

11520233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77466.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 11520233 is about 3394.1468736635. The cubic root of 11520233 is about 225.8501695698.

Adding to 11520233 its reverse (33202511), we get a palindrome (44722744).

The spelling of 11520233 in words is "eleven million, five hundred twenty thousand, two hundred thirty-three".