20301233243 has 4 divisors (see below), whose sum is σ = 20302282080. Its totient is φ = 20300184408.

The previous prime is 20301233219. The next prime is 20301233279. The reversal of 20301233243 is 34233210302.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20301233243 - 2¹⁶ = 20301167707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20301233443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 494828 + ... + 534281.

It is an arithmetic number, because the mean of its divisors is an integer number (5075570520).

Almost surely, 2^20301233243 is an apocalyptic number.

20301233243 is a deficient number, since it is larger than the sum of its proper divisors (1048837).

20301233243 is a wasteful number, since it uses less digits than its factorization.

20301233243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1048836.

The product of its (nonzero) digits is 2592, while the sum is 23.

Adding to 20301233243 its reverse (34233210302), we get a palindrome (54534443545).

The spelling of 20301233243 in words is "twenty billion, three hundred one million, two hundred thirty-three thousand, two hundred forty-three".