723020213 has 2 divisors, whose sum is σ = 723020214. Its totient is φ = 723020212.

The previous prime is 723020209. The next prime is 723020237. The reversal of 723020213 is 312020327.

723020213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 595262404 + 127757809 = 24398^2 + 11303^2 .

It is an emirp because it is prime and its reverse (312020327) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 723020213 - 2² = 723020209 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (723020273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 361510106 + 361510107.

It is an arithmetic number, because the mean of its divisors is an integer number (361510107).

Almost surely, 2^723020213 is an apocalyptic number.

It is an amenable number.

723020213 is a deficient number, since it is larger than the sum of its proper divisors (1).

723020213 is an equidigital number, since it uses as much as digits as its factorization.

723020213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 20.

The square root of 723020213 is about 26889.0351816498. The cubic root of 723020213 is about 897.5324230029.

The spelling of 723020213 in words is "seven hundred twenty-three million, twenty thousand, two hundred thirteen".