721310201 has 8 divisors (see below), whose sum is σ = 752947200. Its totient is φ = 690196320.

The previous prime is 721310189. The next prime is 721310207. The reversal of 721310201 is 102013127.

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 721310201 - 2⁶ = 721310137 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 721310201.

It is not an unprimeable number, because it can be changed into a prime (721310207) 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, 127961 + ... + 133478.

It is an arithmetic number, because the mean of its divisors is an integer number (94118400).

Almost surely, 2^721310201 is an apocalyptic number.

It is an amenable number.

721310201 is a deficient number, since it is larger than the sum of its proper divisors (31636999).

721310201 is a wasteful number, since it uses less digits than its factorization.

721310201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261559.

The product of its (nonzero) digits is 84, while the sum is 17.

The square root of 721310201 is about 26857.2187875066. The cubic root of 721310201 is about 896.8242810753.

Adding to 721310201 its reverse (102013127), we get a palindrome (823323328).

The spelling of 721310201 in words is "seven hundred twenty-one million, three hundred ten thousand, two hundred one".