720741173123 has 8 divisors (see below), whose sum is σ = 738332912016. Its totient is φ = 703150038400.

The previous prime is 720741173099. The next prime is 720741173171. The reversal of 720741173123 is 321371147027.

It is a happy number.

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 720741173123 - 2²⁴ = 720724395907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (720741173423) 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, 3115568 + ... + 3338898.

It is an arithmetic number, because the mean of its divisors is an integer number (92291614002).

Almost surely, 2^720741173123 is an apocalyptic number.

720741173123 is a deficient number, since it is larger than the sum of its proper divisors (17591738893).

720741173123 is a wasteful number, since it uses less digits than its factorization.

720741173123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302085.

The product of its (nonzero) digits is 49392, while the sum is 38.

The spelling of 720741173123 in words is "seven hundred twenty billion, seven hundred forty-one million, one hundred seventy-three thousand, one hundred twenty-three".