4321723560491 has 2 divisors, whose sum is σ = 4321723560492. Its totient is φ = 4321723560490.

The previous prime is 4321723560431. The next prime is 4321723560503. The reversal of 4321723560491 is 1940653271234.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4321723560491 is a prime.

It is a super-2 number, since 2×4321723560491² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4321723560431) 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, 2160861780245 + 2160861780246.

It is an arithmetic number, because the mean of its divisors is an integer number (2160861780246).

Almost surely, 2^{4321723560491} is an apocalyptic number.

4321723560491 is a deficient number, since it is larger than the sum of its proper divisors (1).

4321723560491 is an equidigital number, since it uses as much as digits as its factorization.

4321723560491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1088640, while the sum is 47.

The spelling of 4321723560491 in words is "four trillion, three hundred twenty-one billion, seven hundred twenty-three million, five hundred sixty thousand, four hundred ninety-one".