243221033113 has 4 divisors (see below), whose sum is σ = 243224328960. Its totient is φ = 243217737268.

The previous prime is 243221033101. The next prime is 243221033117. The reversal of 243221033113 is 311330122342.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 243221033113 - 2³³ = 234631098521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (243221033117) 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, 1534633 + ... + 1685686.

It is an arithmetic number, because the mean of its divisors is an integer number (60806082240).

Almost surely, 2^243221033113 is an apocalyptic number.

It is an amenable number.

243221033113 is a deficient number, since it is larger than the sum of its proper divisors (3295847).

243221033113 is an equidigital number, since it uses as much as digits as its factorization.

243221033113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3295846.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 243221033113 its reverse (311330122342), we get a palindrome (554551155455).

The spelling of 243221033113 in words is "two hundred forty-three billion, two hundred twenty-one million, thirty-three thousand, one hundred thirteen".