22313223 has 12 divisors (see below), whose sum is σ = 32550648. Its totient is φ = 14727600.

The previous prime is 22313219. The next prime is 22313227. The reversal of 22313223 is 32231322.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (22313219) and next prime (22313227).

It is not a de Polignac number, because 22313223 - 2² = 22313219 is a prime.

It is a super-3 number, since 3×22313223³ (a number of 23 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22313196 and 22313205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22313227) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11365 + ... + 13182.

It is an arithmetic number, because the mean of its divisors is an integer number (2712554).

Almost surely, 2^22313223 is an apocalyptic number.

22313223 is a deficient number, since it is larger than the sum of its proper divisors (10237425).

22313223 is a wasteful number, since it uses less digits than its factorization.

22313223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24654 (or 24651 counting only the distinct ones).

The product of its digits is 432, while the sum is 18.

The square root of 22313223 is about 4723.6874367384. The cubic root of 22313223 is about 281.5274642546.

Adding to 22313223 its reverse (32231322), we get a palindrome (54544545).

It can be divided in two parts, 2231322 and 3, that multiplied together give a palindrome (6693966).

The spelling of 22313223 in words is "twenty-two million, three hundred thirteen thousand, two hundred twenty-three".