703216082321 has 2 divisors, whose sum is σ = 703216082322. Its totient is φ = 703216082320.

The previous prime is 703216082189. The next prime is 703216082329. The reversal of 703216082321 is 123280612307.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 638273166400 + 64942915921 = 798920^2 + 254839^2 .

It is an emirp because it is prime and its reverse (123280612307) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-703216082321 is a prime.

It is not a weakly prime, because it can be changed into another prime (703216082329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 351608041160 + 351608041161.

It is an arithmetic number, because the mean of its divisors is an integer number (351608041161).

Almost surely, 2^703216082321 is an apocalyptic number.

It is an amenable number.

703216082321 is a deficient number, since it is larger than the sum of its proper divisors (1).

703216082321 is an equidigital number, since it uses as much as digits as its factorization.

703216082321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24192, while the sum is 35.

Adding to 703216082321 its reverse (123280612307), we get a palindrome (826496694628).

The spelling of 703216082321 in words is "seven hundred three billion, two hundred sixteen million, eighty-two thousand, three hundred twenty-one".