11731233 has 4 divisors (see below), whose sum is σ = 15641648. Its totient is φ = 7820820.

The previous prime is 11731211. The next prime is 11731243. The reversal of 11731233 is 33213711.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 11731233 - 2⁵ = 11731201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11731243) 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, 1955203 + ... + 1955208.

It is an arithmetic number, because the mean of its divisors is an integer number (3910412).

Almost surely, 2^11731233 is an apocalyptic number.

It is an amenable number.

11731233 is a deficient number, since it is larger than the sum of its proper divisors (3910415).

11731233 is an equidigital number, since it uses as much as digits as its factorization.

11731233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3910414.

The product of its digits is 378, while the sum is 21.

The square root of 11731233 is about 3425.0887579740. The cubic root of 11731233 is about 227.2206965644.

Adding to 11731233 its reverse (33213711), we get a palindrome (44944944).

The spelling of 11731233 in words is "eleven million, seven hundred thirty-one thousand, two hundred thirty-three".