243434142103 has 2 divisors, whose sum is σ = 243434142104. Its totient is φ = 243434142102.

The previous prime is 243434142097. The next prime is 243434142121. The reversal of 243434142103 is 301241434342.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 243434142103 - 2⁵ = 243434142071 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (243434142173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121717071051 + 121717071052.

It is an arithmetic number, because the mean of its divisors is an integer number (121717071052).

Almost surely, 2^243434142103 is an apocalyptic number.

243434142103 is a deficient number, since it is larger than the sum of its proper divisors (1).

243434142103 is an equidigital number, since it uses as much as digits as its factorization.

243434142103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27648, while the sum is 31.

Adding to 243434142103 its reverse (301241434342), we get a palindrome (544675576445).

The spelling of 243434142103 in words is "two hundred forty-three billion, four hundred thirty-four million, one hundred forty-two thousand, one hundred three".