100001011100989 has 2 divisors, whose sum is σ = 100001011100990. Its totient is φ = 100001011100988.

The previous prime is 100001011100929. The next prime is 100001011101071. The reversal of 100001011100989 is 989001110100001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 72172959548089 + 27828051552900 = 8495467^2 + 5275230^2 .

It is a cyclic number.

It is not a de Polignac number, because 100001011100989 - 2⁹ = 100001011100477 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 100001011100989.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100001011100909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50000505550494 + 50000505550495.

It is an arithmetic number, because the mean of its divisors is an integer number (50000505550495).

Almost surely, 2^{100001011100989} is an apocalyptic number.

It is an amenable number.

100001011100989 is a deficient number, since it is larger than the sum of its proper divisors (1).

100001011100989 is an equidigital number, since it uses as much as digits as its factorization.

100001011100989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 31.

The spelling of 100001011100989 in words is "one hundred trillion, one billion, eleven million, one hundred thousand, nine hundred eighty-nine".