20303241 has 16 divisors (see below), whose sum is σ = 31694208. Its totient is φ = 11318400.

The previous prime is 20303203. The next prime is 20303249. The reversal of 20303241 is 14230302.

It is not a de Polignac number, because 20303241 - 2⁹ = 20302729 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 20303241.

It is not an unprimeable number, because it can be changed into a prime (20303249) 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 in 15 ways as a sum of consecutive naturals, for example, 10930 + ... + 12651.

It is an arithmetic number, because the mean of its divisors is an integer number (1980888).

Almost surely, 2^20303241 is an apocalyptic number.

20303241 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

20303241 is a deficient number, since it is larger than the sum of its proper divisors (11390967).

20303241 is a wasteful number, since it uses less digits than its factorization.

20303241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23632.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 20303241 is about 4505.9117834241. The cubic root of 20303241 is about 272.8067572063.

Adding to 20303241 its reverse (14230302), we get a palindrome (34533543).

The spelling of 20303241 in words is "twenty million, three hundred three thousand, two hundred forty-one".