723133020221 has 8 divisors (see below), whose sum is σ = 728675749824. Its totient is φ = 717590633760.

The previous prime is 723133020187. The next prime is 723133020257. The reversal of 723133020221 is 122020331327.

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 723133020221 - 2³⁴ = 705953151037 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (723136020221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5564441 + ... + 5692913.

It is an arithmetic number, because the mean of its divisors is an integer number (91084468728).

Almost surely, 2^723133020221 is an apocalyptic number.

It is an amenable number.

723133020221 is a deficient number, since it is larger than the sum of its proper divisors (5542729603).

723133020221 is a wasteful number, since it uses less digits than its factorization.

723133020221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171571.

The product of its (nonzero) digits is 3024, while the sum is 26.

Adding to 723133020221 its reverse (122020331327), we get a palindrome (845153351548).

The spelling of 723133020221 in words is "seven hundred twenty-three billion, one hundred thirty-three million, twenty thousand, two hundred twenty-one".