20012303 has 2 divisors, whose sum is σ = 20012304. Its totient is φ = 20012302.

The previous prime is 20012287. The next prime is 20012341. The reversal of 20012303 is 30321002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20012303 - 2⁴ = 20012287 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20012393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10006151 + 10006152.

It is an arithmetic number, because the mean of its divisors is an integer number (10006152).

Almost surely, 2^20012303 is an apocalyptic number.

20012303 is a deficient number, since it is larger than the sum of its proper divisors (1).

20012303 is an equidigital number, since it uses as much as digits as its factorization.

20012303 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 11.

The square root of 20012303 is about 4473.5112607436. The cubic root of 20012303 is about 271.4974093837.

Adding to 20012303 its reverse (30321002), we get a palindrome (50333305).

The spelling of 20012303 in words is "twenty million, twelve thousand, three hundred three".