243234534007 has 2 divisors, whose sum is σ = 243234534008. Its totient is φ = 243234534006.

The previous prime is 243234533957. The next prime is 243234534019. The reversal of 243234534007 is 700435432342.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-243234534007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (243234535007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121617267003 + 121617267004.

It is an arithmetic number, because the mean of its divisors is an integer number (121617267004).

Almost surely, 2^243234534007 is an apocalyptic number.

243234534007 is a deficient number, since it is larger than the sum of its proper divisors (1).

243234534007 is an equidigital number, since it uses as much as digits as its factorization.

243234534007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 241920, while the sum is 37.

Adding to 243234534007 its reverse (700435432342), we get a palindrome (943669966349).

The spelling of 243234534007 in words is "two hundred forty-three billion, two hundred thirty-four million, five hundred thirty-four thousand, seven".