20430083 has 2 divisors, whose sum is σ = 20430084. Its totient is φ = 20430082.

The previous prime is 20430079. The next prime is 20430121. The reversal of 20430083 is 38003402.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20430083 - 2² = 20430079 is a prime.

It is not a weakly prime, because it can be changed into another prime (20430983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10215041 + 10215042.

It is an arithmetic number, because the mean of its divisors is an integer number (10215042).

Almost surely, 2^20430083 is an apocalyptic number.

20430083 is a deficient number, since it is larger than the sum of its proper divisors (1).

20430083 is an equidigital number, since it uses as much as digits as its factorization.

20430083 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 20430083 is about 4519.9649334923. The cubic root of 20430083 is about 273.3736871150.

Adding to 20430083 its reverse (38003402), we get a palindrome (58433485).

The spelling of 20430083 in words is "twenty million, four hundred thirty thousand, eighty-three".