1001000111011 has 16 divisors (see below), whose sum is σ = 1099575993600. Its totient is φ = 907019343648.

The previous prime is 1001000110997. The next prime is 1001000111017. The reversal of 1001000111011 is 1101110001001.

It is a happy number.

It is not a de Polignac number, because 1001000111011 - 2²¹ = 1000998013859 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1001000110985 and 1001000111003.

It is not an unprimeable number, because it can be changed into a prime (1001000111017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6601080 + ... + 6751018.

It is an arithmetic number, because the mean of its divisors is an integer number (68723499600).

Almost surely, 2^{1001000111011} is an apocalyptic number.

1001000111011 is a deficient number, since it is larger than the sum of its proper divisors (98575882589).

1001000111011 is a wasteful number, since it uses less digits than its factorization.

1001000111011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165258.

The product of its (nonzero) digits is 1, while the sum is 7.

Adding to 1001000111011 its reverse (1101110001001), we get a palindrome (2102110112012).

The spelling of 1001000111011 in words is "one trillion, one billion, one hundred eleven thousand, eleven".