243045202923 has 12 divisors (see below), whose sum is σ = 351124902648. Its totient is φ = 162002623200.

The previous prime is 243045202913. The next prime is 243045202949. The reversal of 243045202923 is 329202540342.

243045202923 is a `hidden beast` number, since 2 + 43 + 0 + 4 + 520 + 2 + 92 + 3 = 666.

It is not a de Polignac number, because 243045202923 - 2²⁰ = 243044154347 is a prime.

It is not an unprimeable number, because it can be changed into a prime (243045202913) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2236653 + ... + 2342798.

It is an arithmetic number, because the mean of its divisors is an integer number (29260408554).

Almost surely, 2^243045202923 is an apocalyptic number.

243045202923 is a deficient number, since it is larger than the sum of its proper divisors (108079699725).

243045202923 is a wasteful number, since it uses less digits than its factorization.

243045202923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4585354 (or 4585351 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 36.

The spelling of 243045202923 in words is "two hundred forty-three billion, forty-five million, two hundred two thousand, nine hundred twenty-three".