22042313 has 4 divisors (see below), whose sum is σ = 22081488. Its totient is φ = 22003140.

The previous prime is 22042301. The next prime is 22042331. The reversal of 22042313 is 31324022.

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 22042313 - 2⁶ = 22042249 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22042291 and 22042300.

It is not an unprimeable number, because it can be changed into a prime (22042213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18731 + ... + 19872.

It is an arithmetic number, because the mean of its divisors is an integer number (5520372).

Almost surely, 2^22042313 is an apocalyptic number.

It is an amenable number.

22042313 is a deficient number, since it is larger than the sum of its proper divisors (39175).

22042313 is an equidigital number, since it uses as much as digits as its factorization.

22042313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39174.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 22042313 is about 4694.9241740416. The cubic root of 22042313 is about 280.3834584596.

Adding to 22042313 its reverse (31324022), we get a palindrome (53366335).

The spelling of 22042313 in words is "twenty-two million, forty-two thousand, three hundred thirteen".