20323427 has 2 divisors, whose sum is σ = 20323428. Its totient is φ = 20323426.

The previous prime is 20323423. The next prime is 20323441. The reversal of 20323427 is 72432302.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20323427 - 2² = 20323423 is a prime.

It is not a weakly prime, because it can be changed into another prime (20323423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10161713 + 10161714.

It is an arithmetic number, because the mean of its divisors is an integer number (10161714).

Almost surely, 2^20323427 is an apocalyptic number.

20323427 is a deficient number, since it is larger than the sum of its proper divisors (1).

20323427 is an equidigital number, since it uses as much as digits as its factorization.

20323427 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 23.

The square root of 20323427 is about 4508.1511731529. The cubic root of 20323427 is about 272.8971377385.

Adding to 20323427 its reverse (72432302), we get a palindrome (92755729).

The spelling of 20323427 in words is "twenty million, three hundred twenty-three thousand, four hundred twenty-seven".