1001111210111 has 8 divisors (see below), whose sum is σ = 1028923631040. Its totient is φ = 973570130208.

The previous prime is 1001111210083. The next prime is 1001111210147. The reversal of 1001111210111 is 1110121111001.

It is a happy number.

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 1001111210111 - 2³⁸ = 726233303167 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1001111210092 and 1001111210101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001111210161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67827776 + ... + 67842533.

It is an arithmetic number, because the mean of its divisors is an integer number (128615453880).

Almost surely, 2^{1001111210111} is an apocalyptic number.

1001111210111 is a deficient number, since it is larger than the sum of its proper divisors (27812420929).

1001111210111 is a wasteful number, since it uses less digits than its factorization.

1001111210111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135670513.

The product of its (nonzero) digits is 2, while the sum is 11.

Adding to 1001111210111 its reverse (1110121111001), we get a palindrome (2111232321112).

The spelling of 1001111210111 in words is "one trillion, one billion, one hundred eleven million, two hundred ten thousand, one hundred eleven".