20106283 has 2 divisors, whose sum is σ = 20106284. Its totient is φ = 20106282.

The previous prime is 20106253. The next prime is 20106287. The reversal of 20106283 is 38260102.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20106283 is a prime.

It is not a weakly prime, because it can be changed into another prime (20106287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10053141 + 10053142.

It is an arithmetic number, because the mean of its divisors is an integer number (10053142).

Almost surely, 2^20106283 is an apocalyptic number.

20106283 is a deficient number, since it is larger than the sum of its proper divisors (1).

20106283 is an equidigital number, since it uses as much as digits as its factorization.

20106283 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 22.

The square root of 20106283 is about 4484.0030107037. The cubic root of 20106283 is about 271.9217398481.

Adding to 20106283 its reverse (38260102), we get a palindrome (58366385).

The spelling of 20106283 in words is "twenty million, one hundred six thousand, two hundred eighty-three".