10320400091 has 2 divisors, whose sum is σ = 10320400092. Its totient is φ = 10320400090.

The previous prime is 10320400067. The next prime is 10320400159. The reversal of 10320400091 is 19000402301.

It is a weak prime.

It is an emirp because it is prime and its reverse (19000402301) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10320400091 is a prime.

It is not a weakly prime, because it can be changed into another prime (10320400291) 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, 5160200045 + 5160200046.

It is an arithmetic number, because the mean of its divisors is an integer number (5160200046).

Almost surely, 2^10320400091 is an apocalyptic number.

10320400091 is a deficient number, since it is larger than the sum of its proper divisors (1).

10320400091 is an equidigital number, since it uses as much as digits as its factorization.

10320400091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 10320400091 its reverse (19000402301), we get a palindrome (29320802392).

The spelling of 10320400091 in words is "ten billion, three hundred twenty million, four hundred thousand, ninety-one".