243121240006 has 8 divisors (see below), whose sum is σ = 364817487960. Its totient is φ = 121515410688.

The previous prime is 243121240001. The next prime is 243121240049. The reversal of 243121240006 is 600042121342.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243121240001) 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, 22597936 + ... + 22608691.

It is an arithmetic number, because the mean of its divisors is an integer number (45602185995).

Almost surely, 2^243121240006 is an apocalyptic number.

243121240006 is a deficient number, since it is larger than the sum of its proper divisors (121696247954).

243121240006 is a wasteful number, since it uses less digits than its factorization.

243121240006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45209318.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 243121240006 its reverse (600042121342), we get a palindrome (843163361348).

The spelling of 243121240006 in words is "two hundred forty-three billion, one hundred twenty-one million, two hundred forty thousand, six".