20432383 has 2 divisors, whose sum is σ = 20432384. Its totient is φ = 20432382.

The previous prime is 20432381. The next prime is 20432407. The reversal of 20432383 is 38323402.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20432383 - 2¹ = 20432381 is a prime.

Together with 20432381, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20432381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10216191 + 10216192.

It is an arithmetic number, because the mean of its divisors is an integer number (10216192).

Almost surely, 2^20432383 is an apocalyptic number.

20432383 is a deficient number, since it is larger than the sum of its proper divisors (1).

20432383 is an equidigital number, since it uses as much as digits as its factorization.

20432383 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 20432383 is about 4520.2193530845. The cubic root of 20432383 is about 273.3839454496.

Adding to 20432383 its reverse (38323402), we get a palindrome (58755785).

The spelling of 20432383 in words is "twenty million, four hundred thirty-two thousand, three hundred eighty-three".