22303240243 has 4 divisors (see below), whose sum is σ = 22303686960. Its totient is φ = 22302793528.

The previous prime is 22303240207. The next prime is 22303240259. The reversal of 22303240243 is 34204230322.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22303240243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22303240343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137455 + ... + 251992.

It is an arithmetic number, because the mean of its divisors is an integer number (5575921740).

Almost surely, 2^22303240243 is an apocalyptic number.

22303240243 is a deficient number, since it is larger than the sum of its proper divisors (446717).

22303240243 is an equidigital number, since it uses as much as digits as its factorization.

22303240243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 446716.

The product of its (nonzero) digits is 6912, while the sum is 25.

Adding to 22303240243 its reverse (34204230322), we get a palindrome (56507470565).

The spelling of 22303240243 in words is "twenty-two billion, three hundred three million, two hundred forty thousand, two hundred forty-three".