10010100010091 has 2 divisors, whose sum is σ = 10010100010092. Its totient is φ = 10010100010090.

The previous prime is 10010100010051. The next prime is 10010100010139. The reversal of 10010100010091 is 19001000101001.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (19001000101001) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10010100010091 is a prime.

It is not a weakly prime, because it can be changed into another prime (10010100010051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5005050005045 + 5005050005046.

It is an arithmetic number, because the mean of its divisors is an integer number (5005050005046).

Almost surely, 2^{10010100010091} is an apocalyptic number.

10010100010091 is a deficient number, since it is larger than the sum of its proper divisors (1).

10010100010091 is an equidigital number, since it uses as much as digits as its factorization.

10010100010091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9, while the sum is 14.

Adding to 10010100010091 its reverse (19001000101001), we get a palindrome (29011100111092).

The spelling of 10010100010091 in words is "ten trillion, ten billion, one hundred million, ten thousand, ninety-one".