1000011201111 has 128 divisors (see below), whose sum is σ = 1626809184000. Its totient is φ = 603460730880.

The previous prime is 1000011201109. The next prime is 1000011201191. The reversal of 1000011201111 is 1111021100001.

It is not a de Polignac number, because 1000011201111 - 2¹ = 1000011201109 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 1000011201093 and 1000011201102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000011201191) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 2227196215 + ... + 2227196663.

It is an arithmetic number, because the mean of its divisors is an integer number (12709446750).

Almost surely, 2^{1000011201111} is an apocalyptic number.

1000011201111 is a deficient number, since it is larger than the sum of its proper divisors (626797982889).

1000011201111 is a wasteful number, since it uses less digits than its factorization.

1000011201111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1058 (or 1052 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 9.

Adding to 1000011201111 its reverse (1111021100001), we get a palindrome (2111032301112).

The spelling of 1000011201111 in words is "one trillion, eleven million, two hundred one thousand, one hundred eleven".