22303313 has 4 divisors (see below), whose sum is σ = 22324848. Its totient is φ = 22281780.

The previous prime is 22303289. The next prime is 22303319. The reversal of 22303313 is 31330322.

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 a cyclic number.

It is not a de Polignac number, because 22303313 - 2⁶ = 22303249 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22303291 and 22303300.

It is not an unprimeable number, because it can be changed into a prime (22303319) 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, 9131 + ... + 11312.

It is an arithmetic number, because the mean of its divisors is an integer number (5581212).

Almost surely, 2^22303313 is an apocalyptic number.

It is an amenable number.

22303313 is a deficient number, since it is larger than the sum of its proper divisors (21535).

22303313 is a wasteful number, since it uses less digits than its factorization.

22303313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21534.

The product of its (nonzero) digits is 324, while the sum is 17.

The square root of 22303313 is about 4722.6383515997. The cubic root of 22303313 is about 281.4857796997.

Adding to 22303313 its reverse (31330322), we get a palindrome (53633635).

The spelling of 22303313 in words is "twenty-two million, three hundred three thousand, three hundred thirteen".