100001100009947 has 2 divisors, whose sum is σ = 100001100009948. Its totient is φ = 100001100009946.

The previous prime is 100001100009901. The next prime is 100001100009961. The reversal of 100001100009947 is 749900001100001.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (749900001100001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 100001100009947 - 2⁶ = 100001100009883 is a prime.

It is not a weakly prime, because it can be changed into another prime (100001100000947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50000550004973 + 50000550004974.

It is an arithmetic number, because the mean of its divisors is an integer number (50000550004974).

Almost surely, 2^{100001100009947} is an apocalyptic number.

100001100009947 is a deficient number, since it is larger than the sum of its proper divisors (1).

100001100009947 is an equidigital number, since it uses as much as digits as its factorization.

100001100009947 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2268, while the sum is 32.

Adding to 100001100009947 its reverse (749900001100001), we get a palindrome (849901101109948).

The spelling of 100001100009947 in words is "one hundred trillion, one billion, one hundred million, nine thousand, nine hundred forty-seven".