243434102311 has 2 divisors, whose sum is σ = 243434102312. Its totient is φ = 243434102310.

The previous prime is 243434102293. The next prime is 243434102381. The reversal of 243434102311 is 113201434342.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 243434102311 - 2¹⁹ = 243433578023 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 243434102311.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (243434102381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121717051155 + 121717051156.

It is an arithmetic number, because the mean of its divisors is an integer number (121717051156).

Almost surely, 2^243434102311 is an apocalyptic number.

243434102311 is a deficient number, since it is larger than the sum of its proper divisors (1).

243434102311 is an equidigital number, since it uses as much as digits as its factorization.

243434102311 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 243434102311 its reverse (113201434342), we get a palindrome (356635536653).

The spelling of 243434102311 in words is "two hundred forty-three billion, four hundred thirty-four million, one hundred two thousand, three hundred eleven".