723717363013121 has 4 divisors (see below), whose sum is σ = 734519114699952. Its totient is φ = 712915611326292.

The previous prime is 723717363013097. The next prime is 723717363013181. The reversal of 723717363013121 is 121310363717327.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-723717363013121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (723717363013181) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5400875843315 + ... + 5400875843448.

It is an arithmetic number, because the mean of its divisors is an integer number (183629778674988).

Almost surely, 2^{723717363013121} is an apocalyptic number.

It is an amenable number.

723717363013121 is a deficient number, since it is larger than the sum of its proper divisors (10801751686831).

723717363013121 is a wasteful number, since it uses less digits than its factorization.

723717363013121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10801751686830.

The product of its (nonzero) digits is 666792, while the sum is 47.

The spelling of 723717363013121 in words is "seven hundred twenty-three trillion, seven hundred seventeen billion, three hundred sixty-three million, thirteen thousand, one hundred twenty-one".