20004323 has 2 divisors, whose sum is σ = 20004324. Its totient is φ = 20004322.

The previous prime is 20004311. The next prime is 20004343. The reversal of 20004323 is 32340002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20004323 - 2⁴ = 20004307 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20004298 and 20004307.

It is not a weakly prime, because it can be changed into another prime (20004343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10002161 + 10002162.

It is an arithmetic number, because the mean of its divisors is an integer number (10002162).

Almost surely, 2^20004323 is an apocalyptic number.

20004323 is a deficient number, since it is larger than the sum of its proper divisors (1).

20004323 is an equidigital number, since it uses as much as digits as its factorization.

20004323 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 14.

The square root of 20004323 is about 4472.6192549780. The cubic root of 20004323 is about 271.4613176295.

Adding to 20004323 its reverse (32340002), we get a palindrome (52344325).

The spelling of 20004323 in words is "twenty million, four thousand, three hundred twenty-three".