243342430011131 has 4 divisors (see below), whose sum is σ = 265464469103064. Its totient is φ = 221220390919200.

The previous prime is 243342430011119. The next prime is 243342430011139. The reversal of 243342430011131 is 131110034243342.

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

It is a cyclic number.

It is not a de Polignac number, because 243342430011131 - 2¹⁸ = 243342429748987 is a prime.

It is a super-2 number, since 2×243342430011131² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (243342430011139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11061019545950 + ... + 11061019545971.

It is an arithmetic number, because the mean of its divisors is an integer number (66366117275766).

Almost surely, 2^{243342430011131} is an apocalyptic number.

243342430011131 is a deficient number, since it is larger than the sum of its proper divisors (22122039091933).

243342430011131 is a wasteful number, since it uses less digits than its factorization.

243342430011131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22122039091932.

The product of its (nonzero) digits is 20736, while the sum is 32.

Adding to 243342430011131 its reverse (131110034243342), we get a palindrome (374452464254473).

The spelling of 243342430011131 in words is "two hundred forty-three trillion, three hundred forty-two billion, four hundred thirty million, eleven thousand, one hundred thirty-one".