321361723 has 2 divisors, whose sum is σ = 321361724. Its totient is φ = 321361722.

The previous prime is 321361709. The next prime is 321361739. The reversal of 321361723 is 327163123.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 321361723 - 2²⁵ = 287807291 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 321361691 and 321361700.

It is not a weakly prime, because it can be changed into another prime (321361793) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160680861 + 160680862.

It is an arithmetic number, because the mean of its divisors is an integer number (160680862).

Almost surely, 2^321361723 is an apocalyptic number.

321361723 is a deficient number, since it is larger than the sum of its proper divisors (1).

321361723 is an equidigital number, since it uses as much as digits as its factorization.

321361723 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4536, while the sum is 28.

The square root of 321361723 is about 17926.5647294734. The cubic root of 321361723 is about 684.9592196938.

The spelling of 321361723 in words is "three hundred twenty-one million, three hundred sixty-one thousand, seven hundred twenty-three".