1001111110111 has 16 divisors (see below), whose sum is σ = 1146986555904. Its totient is φ = 855952304544.

The previous prime is 1001111110099. The next prime is 1001111110157. The reversal of 1001111110111 is 1110111111001.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1001111110111 - 2⁹ = 1001111109599 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001111110511) 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, 6924681 + ... + 7067773.

It is an arithmetic number, because the mean of its divisors is an integer number (71686659744).

Almost surely, 2^{1001111110111} is an apocalyptic number.

1001111110111 is a deficient number, since it is larger than the sum of its proper divisors (145875445793).

1001111110111 is a wasteful number, since it uses less digits than its factorization.

1001111110111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145590.

The product of its (nonzero) digits is 1, while the sum is 10.

Adding to 1001111110111 its reverse (1110111111001), we get a palindrome (2111222221112).

The spelling of 1001111110111 in words is "one trillion, one billion, one hundred eleven million, one hundred ten thousand, one hundred eleven".