1331233223 has 4 divisors (see below), whose sum is σ = 1363702368. Its totient is φ = 1298764080.

The previous prime is 1331233207. The next prime is 1331233237. The reversal of 1331233223 is 3223321331.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1331233223 - 2⁴ = 1331233207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1331239223) 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, 16234511 + ... + 16234592.

It is an arithmetic number, because the mean of its divisors is an integer number (340925592).

Almost surely, 2^1331233223 is an apocalyptic number.

1331233223 is a deficient number, since it is larger than the sum of its proper divisors (32469145).

1331233223 is an equidigital number, since it uses as much as digits as its factorization.

1331233223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32469144.

The product of its digits is 1944, while the sum is 23.

The square root of 1331233223 is about 36486.0688893720. The cubic root of 1331233223 is about 1100.0642450081.

Adding to 1331233223 its reverse (3223321331), we get a palindrome (4554554554).

The spelling of 1331233223 in words is "one billion, three hundred thirty-one million, two hundred thirty-three thousand, two hundred twenty-three".