243320101 has 8 divisors (see below), whose sum is σ = 249196640. Its totient is φ = 237453552.

The previous prime is 243320027. The next prime is 243320113. The reversal of 243320101 is 101023342.

It is a happy number.

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 243320101 - 2¹³ = 243311909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243320131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75346 + ... + 78508.

It is an arithmetic number, because the mean of its divisors is an integer number (31149580).

Almost surely, 2^243320101 is an apocalyptic number.

It is an amenable number.

243320101 is a deficient number, since it is larger than the sum of its proper divisors (5876539).

243320101 is a wasteful number, since it uses less digits than its factorization.

243320101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4995.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 243320101 is about 15598.7211334776. The cubic root of 243320101 is about 624.2990336478.

Adding to 243320101 its reverse (101023342), we get a palindrome (344343443).

The spelling of 243320101 in words is "two hundred forty-three million, three hundred twenty thousand, one hundred one".