20313022 has 8 divisors (see below), whose sum is σ = 30749400.
Its totient is φ = 10063224.
The previous prime is 20313001. The next prime is 20313047. The reversal of 20313022 is 22031302.
It is a happy number.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a junction number, because it is equal to n+sod(n) for n = 20312993 and 20313011.
It is a congruent number.
It is an unprimeable number.
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 3 ways as a sum of consecutive naturals, for example, 46372 + ... + 46807.
It is an arithmetic number, because the mean of its divisors is an integer number (3843675).
Almost surely, 220313022 is an apocalyptic number.
20313022 is a deficient number, since it is larger than the sum of its proper divisors (10436378).
20313022 is a wasteful number, since it uses less digits than its factorization.
20313022 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 93290.
The product of its (nonzero) digits is 72, while the sum is 13.
The square root of 20313022 is about 4506.9970046584.
The cubic root of 20313022 is about 272.8505580051.
Adding to 20313022 its reverse (22031302), we get a palindrome (42344324).
It can be divided in two parts, 2031302 and 2, that multiplied together give a palindrome (4062604).
The spelling of 20313022 in words is "twenty million, three hundred thirteen thousand, twenty-two".