723821230842 has 16 divisors (see below), whose sum is σ = 1482950814912. Its totient is φ = 235389018080.

The previous prime is 723821230813. The next prime is 723821230901. The reversal of 723821230842 is 248032128327.

It is a junction number, because it is equal to n+sod(n) for n = 723821230794 and 723821230803.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1471181118 + ... + 1471181609.

It is an arithmetic number, because the mean of its divisors is an integer number (92684425932).

Almost surely, 2^723821230842 is an apocalyptic number.

723821230842 is an abundant number, since it is smaller than the sum of its proper divisors (759129584070).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

723821230842 is a wasteful number, since it uses less digits than its factorization.

723821230842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2942362773.

The product of its (nonzero) digits is 258048, while the sum is 42.

The spelling of 723821230842 in words is "seven hundred twenty-three billion, eight hundred twenty-one million, two hundred thirty thousand, eight hundred forty-two".