243244263012311 has 24 divisors (see below), whose sum is σ = 274905502692912. Its totient is φ = 214910410809600.

The previous prime is 243244263012263. The next prime is 243244263012323. The reversal of 243244263012311 is 113210362442342.

It is a happy number.

It is not a de Polignac number, because 243244263012311 - 2³⁴ = 243227083143127 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 (243244263012811) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26891165 + ... + 34779638.

It is an arithmetic number, because the mean of its divisors is an integer number (11454395945538).

Almost surely, 2^{243244263012311} is an apocalyptic number.

243244263012311 is a deficient number, since it is larger than the sum of its proper divisors (31661239680601).

243244263012311 is a wasteful number, since it uses less digits than its factorization.

243244263012311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61671743 (or 61671732 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 38.

The spelling of 243244263012311 in words is "two hundred forty-three trillion, two hundred forty-four billion, two hundred sixty-three million, twelve thousand, three hundred eleven".