243121372402263 has 8 divisors (see below), whose sum is σ = 329656098172800. Its totient is φ = 159333780783288.

The previous prime is 243121372402247. The next prime is 243121372402273. The reversal of 243121372402263 is 362204273121342.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 243121372402263 - 2⁴ = 243121372402247 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243121372402273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 686783537683 + ... + 686783538036.

It is an arithmetic number, because the mean of its divisors is an integer number (41207012271600).

Almost surely, 2^{243121372402263} is an apocalyptic number.

243121372402263 is a deficient number, since it is larger than the sum of its proper divisors (86534725770537).

243121372402263 is a wasteful number, since it uses less digits than its factorization.

243121372402263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1373567075781.

The product of its (nonzero) digits is 580608, while the sum is 42.

The spelling of 243121372402263 in words is "two hundred forty-three trillion, one hundred twenty-one billion, three hundred seventy-two million, four hundred two thousand, two hundred sixty-three".