1001000009911 has 8 divisors (see below), whose sum is σ = 1092024722448. Its totient is φ = 909979416000.

The previous prime is 1001000009873. The next prime is 1001000009927. The reversal of 1001000009911 is 1199000001001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1001000009911 - 2¹⁷ = 1000999878839 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001000009411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 510070 + ... + 1504051.

It is an arithmetic number, because the mean of its divisors is an integer number (136503090306).

Almost surely, 2^{1001000009911} is an apocalyptic number.

1001000009911 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1001000009911 is a deficient number, since it is larger than the sum of its proper divisors (91024712537).

1001000009911 is a wasteful number, since it uses less digits than its factorization.

1001000009911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2059313.

The product of its (nonzero) digits is 81, while the sum is 22.

The spelling of 1001000009911 in words is "one trillion, one billion, nine thousand, nine hundred eleven".