20316427 has 2 divisors, whose sum is σ = 20316428. Its totient is φ = 20316426.

The previous prime is 20316421. The next prime is 20316433. The reversal of 20316427 is 72461302.

It is a balanced prime because it is at equal distance from previous prime (20316421) and next prime (20316433).

It is a cyclic number.

It is not a de Polignac number, because 20316427 - 2³ = 20316419 is a prime.

It is not a weakly prime, because it can be changed into another prime (20316421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10158213 + 10158214.

It is an arithmetic number, because the mean of its divisors is an integer number (10158214).

Almost surely, 2^20316427 is an apocalyptic number.

20316427 is a deficient number, since it is larger than the sum of its proper divisors (1).

20316427 is an equidigital number, since it uses as much as digits as its factorization.

20316427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 20316427 is about 4507.3747348096. The cubic root of 20316427 is about 272.8658028112.

Adding to 20316427 its reverse (72461302), we get a palindrome (92777729).

The spelling of 20316427 in words is "twenty million, three hundred sixteen thousand, four hundred twenty-seven".