243420122243 has 8 divisors (see below), whose sum is σ = 243721248000. Its totient is φ = 243119077128.

The previous prime is 243420122221. The next prime is 243420122249. The reversal of 243420122243 is 342221024342.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 243420122243 - 2¹² = 243420118147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (243420122249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7887080 + ... + 7917882.

It is an arithmetic number, because the mean of its divisors is an integer number (30465156000).

Almost surely, 2^243420122243 is an apocalyptic number.

243420122243 is a deficient number, since it is larger than the sum of its proper divisors (301125757).

243420122243 is an equidigital number, since it uses as much as digits as its factorization.

243420122243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40321.

The product of its (nonzero) digits is 18432, while the sum is 29.

Adding to 243420122243 its reverse (342221024342), we get a palindrome (585641146585).

The spelling of 243420122243 in words is "two hundred forty-three billion, four hundred twenty million, one hundred twenty-two thousand, two hundred forty-three".