9491493103 has 2 divisors, whose sum is σ = 9491493104. Its totient is φ = 9491493102.

The previous prime is 9491493047. The next prime is 9491493113. The reversal of 9491493103 is 3013941949.

It is a strong prime.

It is an emirp because it is prime and its reverse (3013941949) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9491493103 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9491493103.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9491493113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4745746551 + 4745746552.

It is an arithmetic number, because the mean of its divisors is an integer number (4745746552).

Almost surely, 2^9491493103 is an apocalyptic number.

9491493103 is a deficient number, since it is larger than the sum of its proper divisors (1).

9491493103 is an equidigital number, since it uses as much as digits as its factorization.

9491493103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 104976, while the sum is 43.

The square root of 9491493103 is about 97424.2942135071. The cubic root of 9491493103 is about 2117.2794329009.

The spelling of 9491493103 in words is "nine billion, four hundred ninety-one million, four hundred ninety-three thousand, one hundred three".