10001111100999 has 64 divisors (see below), whose sum is σ = 14469833207808. Its totient is φ = 6130218931200.

The previous prime is 10001111100917. The next prime is 10001111101001. The reversal of 10001111100999 is 99900111110001.

It is not a de Polignac number, because 10001111100999 - 2¹⁹ = 10001110576711 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10001111120999) 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 in 63 ways as a sum of consecutive naturals, for example, 700301739 + ... + 700316019.

It is an arithmetic number, because the mean of its divisors is an integer number (226091143872).

Almost surely, 2^{10001111100999} is an apocalyptic number.

10001111100999 is a deficient number, since it is larger than the sum of its proper divisors (4468722106809).

10001111100999 is a wasteful number, since it uses less digits than its factorization.

10001111100999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19128.

The product of its (nonzero) digits is 729, while the sum is 33.

The spelling of 10001111100999 in words is "ten trillion, one billion, one hundred eleven million, one hundred thousand, nine hundred ninety-nine".