243213341141 has 4 divisors (see below), whose sum is σ = 244159696812. Its totient is φ = 242266985472.

The previous prime is 243213341083. The next prime is 243213341149. The reversal of 243213341141 is 141143312342.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 145210534225 + 98002806916 = 381065^2 + 313054^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-243213341141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243213341149) 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, 473177450 + ... + 473177963.

It is an arithmetic number, because the mean of its divisors is an integer number (61039924203).

Almost surely, 2^243213341141 is an apocalyptic number.

It is an amenable number.

243213341141 is a deficient number, since it is larger than the sum of its proper divisors (946355671).

243213341141 is an equidigital number, since it uses as much as digits as its factorization.

243213341141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 946355670.

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

Adding to 243213341141 its reverse (141143312342), we get a palindrome (384356653483).

The spelling of 243213341141 in words is "two hundred forty-three billion, two hundred thirteen million, three hundred forty-one thousand, one hundred forty-one".