20242316243 has 4 divisors (see below), whose sum is σ = 20258681520. Its totient is φ = 20225950968.

The previous prime is 20242316231. The next prime is 20242316257. The reversal of 20242316243 is 34261324202.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 20242316243 - 2¹² = 20242312147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20242316203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8180783 + ... + 8183256.

It is an arithmetic number, because the mean of its divisors is an integer number (5064670380).

Almost surely, 2^20242316243 is an apocalyptic number.

20242316243 is a deficient number, since it is larger than the sum of its proper divisors (16365277).

20242316243 is a wasteful number, since it uses less digits than its factorization.

20242316243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16365276.

The product of its (nonzero) digits is 13824, while the sum is 29.

The spelling of 20242316243 in words is "twenty billion, two hundred forty-two million, three hundred sixteen thousand, two hundred forty-three".