243013224021 has 8 divisors (see below), whose sum is σ = 324116702784. Its totient is φ = 161959280640.

The previous prime is 243013223987. The next prime is 243013224023. The reversal of 243013224021 is 120422310342.

It is a happy number.

243013224021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 243013224021 - 2²² = 243009029717 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 243013223982 and 243013224000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243013224023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12372396 + ... + 12392021.

It is an arithmetic number, because the mean of its divisors is an integer number (40514587848).

Almost surely, 2^243013224021 is an apocalyptic number.

It is an amenable number.

243013224021 is a deficient number, since it is larger than the sum of its proper divisors (81103478763).

243013224021 is a wasteful number, since it uses less digits than its factorization.

243013224021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24767691.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 243013224021 its reverse (120422310342), we get a palindrome (363435534363).

The spelling of 243013224021 in words is "two hundred forty-three billion, thirteen million, two hundred twenty-four thousand, twenty-one".