243103137023 has 2 divisors, whose sum is σ = 243103137024. Its totient is φ = 243103137022.

The previous prime is 243103137019. The next prime is 243103137029. The reversal of 243103137023 is 320731301342.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 243103137023 - 2² = 243103137019 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (243103137029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121551568511 + 121551568512.

It is an arithmetic number, because the mean of its divisors is an integer number (121551568512).

Almost surely, 2^243103137023 is an apocalyptic number.

243103137023 is a deficient number, since it is larger than the sum of its proper divisors (1).

243103137023 is an equidigital number, since it uses as much as digits as its factorization.

243103137023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 29.

Adding to 243103137023 its reverse (320731301342), we get a palindrome (563834438365).

The spelling of 243103137023 in words is "two hundred forty-three billion, one hundred three million, one hundred thirty-seven thousand, twenty-three".