20300302243 has 16 divisors (see below), whose sum is σ = 22480387776. Its totient is φ = 18212060160.

The previous prime is 20300302237. The next prime is 20300302247. The reversal of 20300302243 is 34220300302.

It is a cyclic number.

It is not a de Polignac number, because 20300302243 - 2²⁵ = 20266747811 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20300302243.

It is not an unprimeable number, because it can be changed into a prime (20300302247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67771 + ... + 212587.

It is an arithmetic number, because the mean of its divisors is an integer number (1405024236).

Almost surely, 2^20300302243 is an apocalyptic number.

20300302243 is a deficient number, since it is larger than the sum of its proper divisors (2180085533).

20300302243 is a wasteful number, since it uses less digits than its factorization.

20300302243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145134.

The product of its (nonzero) digits is 864, while the sum is 19.

Adding to 20300302243 its reverse (34220300302), we get a palindrome (54520602545).

The spelling of 20300302243 in words is "twenty billion, three hundred million, three hundred two thousand, two hundred forty-three".