20030207 has 2 divisors, whose sum is σ = 20030208. Its totient is φ = 20030206.

The previous prime is 20030203. The next prime is 20030239. The reversal of 20030207 is 70203002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20030207 - 2² = 20030203 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20030191 and 20030200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20030203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10015103 + 10015104.

It is an arithmetic number, because the mean of its divisors is an integer number (10015104).

Almost surely, 2^20030207 is an apocalyptic number.

20030207 is a deficient number, since it is larger than the sum of its proper divisors (1).

20030207 is an equidigital number, since it uses as much as digits as its factorization.

20030207 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84, while the sum is 14.

The square root of 20030207 is about 4475.5119260259. The cubic root of 20030207 is about 271.5783502719.

Adding to 20030207 its reverse (70203002), we get a palindrome (90233209).

The spelling of 20030207 in words is "twenty million, thirty thousand, two hundred seven".