243132112441 has 4 divisors (see below), whose sum is σ = 243372125412. Its totient is φ = 242892099472.

The previous prime is 243132112387. The next prime is 243132112469. The reversal of 243132112441 is 144211231342.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 144211231342 = 2 ⋅72105615671.

It can be written as a sum of positive squares in 2 ways, for example, as 5373476416 + 237758636025 = 73304^2 + 487605^2 .

It is a cyclic number.

It is not a de Polignac number, because 243132112441 - 2³⁵ = 208772374073 is a prime.

It is a super-2 number, since 2×243132112441² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (243132112481) 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, 120004966 + ... + 120006991.

It is an arithmetic number, because the mean of its divisors is an integer number (60843031353).

Almost surely, 2^243132112441 is an apocalyptic number.

It is an amenable number.

243132112441 is a deficient number, since it is larger than the sum of its proper divisors (240012971).

243132112441 is a wasteful number, since it uses less digits than its factorization.

243132112441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240012970.

The product of its digits is 4608, while the sum is 28.

Adding to 243132112441 its reverse (144211231342), we get a palindrome (387343343783).

The spelling of 243132112441 in words is "two hundred forty-three billion, one hundred thirty-two million, one hundred twelve thousand, four hundred forty-one".