1011101009999 has 2 divisors, whose sum is σ = 1011101010000. Its totient is φ = 1011101009998.

The previous prime is 1011101009993. The next prime is 1011101010013. The reversal of 1011101009999 is 9999001011101.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1011101009999 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1011101009993) 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, 505550504999 + 505550505000.

It is an arithmetic number, because the mean of its divisors is an integer number (505550505000).

Almost surely, 2^{1011101009999} is an apocalyptic number.

1011101009999 is a deficient number, since it is larger than the sum of its proper divisors (1).

1011101009999 is an equidigital number, since it uses as much as digits as its factorization.

1011101009999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6561, while the sum is 41.

The spelling of 1011101009999 in words is "one trillion, eleven billion, one hundred one million, nine thousand, nine hundred ninety-nine".