243132221053 has 8 divisors (see below), whose sum is σ = 257408013600. Its totient is φ = 229004364528.

The previous prime is 243132221027. The next prime is 243132221149. The reversal of 243132221053 is 350122231342.

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 a de Polignac number, because none of the positive numbers 2^k-243132221053 is a prime.

It is a super-2 number, since 2×243132221053² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243132231053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36980623 + ... + 36987196.

It is an arithmetic number, because the mean of its divisors is an integer number (32176001700).

Almost surely, 2^243132221053 is an apocalyptic number.

It is an amenable number.

243132221053 is a deficient number, since it is larger than the sum of its proper divisors (14275792547).

243132221053 is a wasteful number, since it uses less digits than its factorization.

243132221053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73968011.

The product of its (nonzero) digits is 8640, while the sum is 28.

Adding to 243132221053 its reverse (350122231342), we get a palindrome (593254452395).

The spelling of 243132221053 in words is "two hundred forty-three billion, one hundred thirty-two million, two hundred twenty-one thousand, fifty-three".