731117235243 has 16 divisors (see below), whose sum is σ = 997612664576. Its totient is φ = 476019361440.

The previous prime is 731117235241. The next prime is 731117235257. The reversal of 731117235243 is 342532711137.

It is not a de Polignac number, because 731117235243 - 2¹ = 731117235241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (731117235241) 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 15 ways as a sum of consecutive naturals, for example, 756546 + ... + 1426392.

It is an arithmetic number, because the mean of its divisors is an integer number (62350791536).

Almost surely, 2^731117235243 is an apocalyptic number.

731117235243 is a deficient number, since it is larger than the sum of its proper divisors (266495429333).

731117235243 is a wasteful number, since it uses less digits than its factorization.

731117235243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 678354.

The product of its digits is 105840, while the sum is 39.

The spelling of 731117235243 in words is "seven hundred thirty-one billion, one hundred seventeen million, two hundred thirty-five thousand, two hundred forty-three".