243105502045 has 16 divisors (see below), whose sum is σ = 339692434560. Its totient is φ = 163555614144.

The previous prime is 243105502019. The next prime is 243105502127. The reversal of 243105502045 is 540205501342.

It is a cyclic number.

It is not a de Polignac number, because 243105502045 - 2¹⁹ = 243104977757 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 243105501998 and 243105502016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65525235 + ... + 65528944.

It is an arithmetic number, because the mean of its divisors is an integer number (21230777160).

Almost surely, 2^243105502045 is an apocalyptic number.

It is an amenable number.

243105502045 is a deficient number, since it is larger than the sum of its proper divisors (96586932515).

243105502045 is a wasteful number, since it uses less digits than its factorization.

243105502045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131054244.

The product of its (nonzero) digits is 24000, while the sum is 31.

The spelling of 243105502045 in words is "two hundred forty-three billion, one hundred five million, five hundred two thousand, forty-five".