20383163 has 2 divisors, whose sum is σ = 20383164. Its totient is φ = 20383162.

The previous prime is 20383147. The next prime is 20383169. The reversal of 20383163 is 36138302.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20383163 - 2⁴ = 20383147 is a prime.

It is not a weakly prime, because it can be changed into another prime (20383169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10191581 + 10191582.

It is an arithmetic number, because the mean of its divisors is an integer number (10191582).

Almost surely, 2^20383163 is an apocalyptic number.

20383163 is a deficient number, since it is larger than the sum of its proper divisors (1).

20383163 is an equidigital number, since it uses as much as digits as its factorization.

20383163 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 20383163 is about 4514.7716442806. The cubic root of 20383163 is about 273.1642488197.

The spelling of 20383163 in words is "twenty million, three hundred eighty-three thousand, one hundred sixty-three".