243341431121 has 8 divisors (see below), whose sum is σ = 247941210600. Its totient is φ = 238741964032.

The previous prime is 243341431103. The next prime is 243341431133. The reversal of 243341431121 is 121134143342.

It can be written as a sum of positive squares in 4 ways, for example, as 168068021521 + 75273409600 = 409961^2 + 274360^2 .

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 243341431121 - 2³⁰ = 242267689297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (243341431141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2024105 + ... + 2140953.

It is an arithmetic number, because the mean of its divisors is an integer number (30992651325).

Almost surely, 2^243341431121 is an apocalyptic number.

It is an amenable number.

243341431121 is a deficient number, since it is larger than the sum of its proper divisors (4599779479).

243341431121 is a wasteful number, since it uses less digits than its factorization.

243341431121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156195.

The product of its digits is 6912, while the sum is 29.

Adding to 243341431121 its reverse (121134143342), we get a palindrome (364475574463).

The spelling of 243341431121 in words is "two hundred forty-three billion, three hundred forty-one million, four hundred thirty-one thousand, one hundred twenty-one".