10391943623 has 2 divisors, whose sum is σ = 10391943624. Its totient is φ = 10391943622.

The previous prime is 10391943577. The next prime is 10391943637. The reversal of 10391943623 is 32634919301.

It is a strong prime.

It is an emirp because it is prime and its reverse (32634919301) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10391943623 - 2¹⁰ = 10391942599 is a prime.

It is a super-2 number, since 2×10391943623² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10391943673) 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 as a sum of consecutive naturals, namely, 5195971811 + 5195971812.

It is an arithmetic number, because the mean of its divisors is an integer number (5195971812).

Almost surely, 2^10391943623 is an apocalyptic number.

10391943623 is a deficient number, since it is larger than the sum of its proper divisors (1).

10391943623 is an equidigital number, since it uses as much as digits as its factorization.

10391943623 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 104976, while the sum is 41.

The spelling of 10391943623 in words is "ten billion, three hundred ninety-one million, nine hundred forty-three thousand, six hundred twenty-three".