243023544530623 has 4 divisors (see below), whose sum is σ = 243028893629488. Its totient is φ = 243018195431760.

The previous prime is 243023544530593. The next prime is 243023544530653. The reversal of 243023544530623 is 326035445320342.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (243023544530593) and next prime (243023544530653).

It is a cyclic number.

It is not a de Polignac number, because 243023544530623 - 2⁴¹ = 240824521275071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243023544530653) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2674481283 + ... + 2674572148.

It is an arithmetic number, because the mean of its divisors is an integer number (60757223407372).

Almost surely, 2^{243023544530623} is an apocalyptic number.

243023544530623 is a deficient number, since it is larger than the sum of its proper divisors (5349098865).

243023544530623 is an equidigital number, since it uses as much as digits as its factorization.

243023544530623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5349098864.

The product of its (nonzero) digits is 6220800, while the sum is 46.

Adding to 243023544530623 its reverse (326035445320342), we get a palindrome (569058989850965).

The spelling of 243023544530623 in words is "two hundred forty-three trillion, twenty-three billion, five hundred forty-four million, five hundred thirty thousand, six hundred twenty-three".