10000111111 has 4 divisors (see below), whose sum is σ = 10112472000. Its totient is φ = 9887750224.

The previous prime is 10000111081. The next prime is 10000111123. The reversal of 10000111111 is 11111100001.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11111100001 = 47 ⋅236406383.

It is a cyclic number.

It is not a de Polignac number, because 10000111111 - 2⁷ = 10000110983 is a prime.

It is a Duffinian number.

10000111111 is a modest number, since divided by 111111 gives 10000 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 10000111094 and 10000111103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10000111171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56180311 + ... + 56180488.

It is an arithmetic number, because the mean of its divisors is an integer number (2528118000).

Almost surely, 2^10000111111 is an apocalyptic number.

10000111111 is a deficient number, since it is larger than the sum of its proper divisors (112360889).

10000111111 is an equidigital number, since it uses as much as digits as its factorization.

10000111111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112360888.

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

Adding to 10000111111 its reverse (11111100001), we get a palindrome (21111211112).

It can be divided in two parts, 100001 and 11111, that multiplied together give a palindrome (1111111111).

The spelling of 10000111111 in words is "ten billion, one hundred eleven thousand, one hundred eleven".