243420122241 has 32 divisors (see below), whose sum is σ = 363053433600. Its totient is φ = 161189602560.

The previous prime is 243420122221. The next prime is 243420122249. The reversal of 243420122241 is 142221024342.

It is a happy number.

243420122241 is a `hidden beast` number, since 2 + 4 + 3 + 420 + 12 + 224 + 1 = 666.

It is not a de Polignac number, because 243420122241 - 2²¹ = 243418025089 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (243420122249) 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 31 ways as a sum of consecutive naturals, for example, 2483140 + ... + 2579306.

It is an arithmetic number, because the mean of its divisors is an integer number (11345419800).

Almost surely, 2^243420122241 is an apocalyptic number.

It is an amenable number.

243420122241 is a deficient number, since it is larger than the sum of its proper divisors (119633311359).

243420122241 is a wasteful number, since it uses less digits than its factorization.

243420122241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96806 (or 96800 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

Adding to 243420122241 its reverse (142221024342), we get a palindrome (385641146583).

The spelling of 243420122241 in words is "two hundred forty-three billion, four hundred twenty million, one hundred twenty-two thousand, two hundred forty-one".