20023307 has 2 divisors, whose sum is σ = 20023308. Its totient is φ = 20023306.

The previous prime is 20023291. The next prime is 20023313. The reversal of 20023307 is 70332002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20023307 - 2⁴ = 20023291 is a prime.

It is not a weakly prime, because it can be changed into another prime (20023907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10011653 + 10011654.

It is an arithmetic number, because the mean of its divisors is an integer number (10011654).

Almost surely, 2^20023307 is an apocalyptic number.

20023307 is a deficient number, since it is larger than the sum of its proper divisors (1).

20023307 is an equidigital number, since it uses as much as digits as its factorization.

20023307 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 252, while the sum is 17.

The square root of 20023307 is about 4474.7409980914. The cubic root of 20023307 is about 271.5471622795.

Adding to 20023307 its reverse (70332002), we get a palindrome (90355309).

The spelling of 20023307 in words is "twenty million, twenty-three thousand, three hundred seven".