243402245111 has 2 divisors, whose sum is σ = 243402245112. Its totient is φ = 243402245110.

The previous prime is 243402245087. The next prime is 243402245161. The reversal of 243402245111 is 111542204342.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 243402245111 - 2¹⁰ = 243402244087 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (243402245161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121701122555 + 121701122556.

It is an arithmetic number, because the mean of its divisors is an integer number (121701122556).

Almost surely, 2^243402245111 is an apocalyptic number.

243402245111 is a deficient number, since it is larger than the sum of its proper divisors (1).

243402245111 is an equidigital number, since it uses as much as digits as its factorization.

243402245111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7680, while the sum is 29.

Adding to 243402245111 its reverse (111542204342), we get a palindrome (354944449453).

The spelling of 243402245111 in words is "two hundred forty-three billion, four hundred two million, two hundred forty-five thousand, one hundred eleven".