1002100111111 has 8 divisors (see below), whose sum is σ = 1094178827664. Its totient is φ = 910184512320.

The previous prime is 1002100111037. The next prime is 1002100111123. The reversal of 1002100111111 is 1111110012001.

1002100111111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 1002100111111 - 2⁷ = 1002100110983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002100111211) 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, 40766590 + ... + 40791163.

It is an arithmetic number, because the mean of its divisors is an integer number (136772353458).

Almost surely, 2^{1002100111111} is an apocalyptic number.

1002100111111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1002100111111 is a deficient number, since it is larger than the sum of its proper divisors (92078716553).

1002100111111 is a wasteful number, since it uses less digits than its factorization.

1002100111111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81558881.

The product of its (nonzero) digits is 2, while the sum is 10.

Adding to 1002100111111 its reverse (1111110012001), we get a palindrome (2113210123112).

The spelling of 1002100111111 in words is "one trillion, two billion, one hundred million, one hundred eleven thousand, one hundred eleven".