723027243221 has 12 divisors (see below), whose sum is σ = 738393169248. Its totient is φ = 707973527664.

The previous prime is 723027243209. The next prime is 723027243311. The reversal of 723027243221 is 122342720327.

It is not a de Polignac number, because 723027243221 - 2²⁶ = 722960134357 is a prime.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (723027243121) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1157066 + ... + 1668788.

It is an arithmetic number, because the mean of its divisors is an integer number (61532764104).

Almost surely, 2^723027243221 is an apocalyptic number.

It is an amenable number.

723027243221 is a deficient number, since it is larger than the sum of its proper divisors (15365926027).

723027243221 is an equidigital number, since it uses as much as digits as its factorization.

723027243221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 512332 (or 512279 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 35.

Adding to 723027243221 its reverse (122342720327), we get a palindrome (845369963548).

The spelling of 723027243221 in words is "seven hundred twenty-three billion, twenty-seven million, two hundred forty-three thousand, two hundred twenty-one".