723275221034243 has 4 divisors (see below), whose sum is σ = 723283783932840. Its totient is φ = 723266658135648.

The previous prime is 723275221034173. The next prime is 723275221034339. The reversal of 723275221034243 is 342430122572327.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 723275221034243 - 2²⁸ = 723274952598787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (723275821034243) 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 3 ways as a sum of consecutive naturals, for example, 4281322598 + ... + 4281491531.

It is an arithmetic number, because the mean of its divisors is an integer number (180820945983210).

Almost surely, 2^{723275221034243} is an apocalyptic number.

723275221034243 is a deficient number, since it is larger than the sum of its proper divisors (8562898597).

723275221034243 is an equidigital number, since it uses as much as digits as its factorization.

723275221034243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8562898596.

The product of its (nonzero) digits is 3386880, while the sum is 47.

The spelling of 723275221034243 in words is "seven hundred twenty-three trillion, two hundred seventy-five billion, two hundred twenty-one million, thirty-four thousand, two hundred forty-three".