20322130 has 8 divisors (see below), whose sum is σ = 36579852. Its totient is φ = 8128848.

The previous prime is 20322119. The next prime is 20322131. The reversal of 20322130 is 3122302.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 19793601 + 528529 = 4449^2 + 727^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 20322130.

It is not an unprimeable number, because it can be changed into a prime (20322131) 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, 1016097 + ... + 1016116.

Almost surely, 2^20322130 is an apocalyptic number.

20322130 is a deficient number, since it is larger than the sum of its proper divisors (16257722).

20322130 is a wasteful number, since it uses less digits than its factorization.

20322130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2032220.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 20322130 is about 4508.0073203135. The cubic root of 20322130 is about 272.8913323672.

Adding to 20322130 its reverse (3122302), we get a palindrome (23444432).

The spelling of 20322130 in words is "twenty million, three hundred twenty-two thousand, one hundred thirty".