20312323 has 8 divisors (see below), whose sum is σ = 20902928. Its totient is φ = 19730304.

The previous prime is 20312309. The next prime is 20312351. The reversal of 20312323 is 32321302.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20312323 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20312297 and 20312306.

It is not an unprimeable number, because it can be changed into a prime (20312353) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2815 + ... + 6967.

It is an arithmetic number, because the mean of its divisors is an integer number (2612866).

Almost surely, 2^20312323 is an apocalyptic number.

20312323 is a deficient number, since it is larger than the sum of its proper divisors (590605).

20312323 is an equidigital number, since it uses as much as digits as its factorization.

20312323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4293.

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 20312323 is about 4506.9194579003. The cubic root of 20312323 is about 272.8474282438.

Adding to 20312323 its reverse (32321302), we get a palindrome (52633625).

The spelling of 20312323 in words is "twenty million, three hundred twelve thousand, three hundred twenty-three".