243245621603431 has 8 divisors (see below), whose sum is σ = 243858924449280. Its totient is φ = 242632833493272.

The previous prime is 243245621603401. The next prime is 243245621603443. The reversal of 243245621603431 is 134306126542342.

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

It is a cyclic number.

It is not a de Polignac number, because 243245621603431 - 2¹⁵ = 243245621570663 is a prime.

It is a super-2 number, since 2×243245621603431² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243245621603401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127737595 + ... + 129627868.

It is an arithmetic number, because the mean of its divisors is an integer number (30482365556160).

Almost surely, 2^{243245621603431} is an apocalyptic number.

243245621603431 is a deficient number, since it is larger than the sum of its proper divisors (613302845849).

243245621603431 is a wasteful number, since it uses less digits than its factorization.

243245621603431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257367845.

The product of its (nonzero) digits is 2488320, while the sum is 46.

The spelling of 243245621603431 in words is "two hundred forty-three trillion, two hundred forty-five billion, six hundred twenty-one million, six hundred three thousand, four hundred thirty-one".