22331323 has 16 divisors (see below), whose sum is σ = 26208000. Its totient is φ = 18633312.

The previous prime is 22331303. The next prime is 22331333. The reversal of 22331323 is 32313322.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 22331323 - 2⁵ = 22331291 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22331323.

It is not an unprimeable number, because it can be changed into a prime (22331303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57213 + ... + 57601.

It is an arithmetic number, because the mean of its divisors is an integer number (1638000).

Almost surely, 2^22331323 is an apocalyptic number.

22331323 is a deficient number, since it is larger than the sum of its proper divisors (3876677).

22331323 is a wasteful number, since it uses less digits than its factorization.

22331323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 594.

The product of its digits is 648, while the sum is 19.

The square root of 22331323 is about 4725.6029244955. The cubic root of 22331323 is about 281.6035666610.

Adding to 22331323 its reverse (32313322), we get a palindrome (54644645).

The spelling of 22331323 in words is "twenty-two million, three hundred thirty-one thousand, three hundred twenty-three".