243140100443 has 2 divisors, whose sum is σ = 243140100444. Its totient is φ = 243140100442.

The previous prime is 243140100383. The next prime is 243140100451. The reversal of 243140100443 is 344001041342.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 243140100443 - 2¹⁸ = 243139838299 is a prime.

It is not a weakly prime, because it can be changed into another prime (243140100743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121570050221 + 121570050222.

It is an arithmetic number, because the mean of its divisors is an integer number (121570050222).

Almost surely, 2^243140100443 is an apocalyptic number.

243140100443 is a deficient number, since it is larger than the sum of its proper divisors (1).

243140100443 is an equidigital number, since it uses as much as digits as its factorization.

243140100443 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 243140100443 its reverse (344001041342), we get a palindrome (587141141785).

The spelling of 243140100443 in words is "two hundred forty-three billion, one hundred forty million, one hundred thousand, four hundred forty-three".