22323331 has 2 divisors, whose sum is σ = 22323332. Its totient is φ = 22323330.

The previous prime is 22323319. The next prime is 22323337. The reversal of 22323331 is 13332322.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22323331 - 2²¹ = 20226179 is a prime.

It is a super-3 number, since 3×22323331³ (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 22323299 and 22323308.

It is not a weakly prime, because it can be changed into another prime (22323337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11161665 + 11161666.

It is an arithmetic number, because the mean of its divisors is an integer number (11161666).

Almost surely, 2^22323331 is an apocalyptic number.

22323331 is a deficient number, since it is larger than the sum of its proper divisors (1).

22323331 is an equidigital number, since it uses as much as digits as its factorization.

22323331 is an odious number, because the sum of its binary digits is odd.

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

The square root of 22323331 is about 4724.7572424411. The cubic root of 22323331 is about 281.5699689466.

Adding to 22323331 its reverse (13332322), we get a palindrome (35655653).

The spelling of 22323331 in words is "twenty-two million, three hundred twenty-three thousand, three hundred thirty-one".