10000000111111 has 16 divisors (see below), whose sum is σ = 10208726064000. Its totient is φ = 9792737337600.

The previous prime is 10000000111109. The next prime is 10000000111159. The reversal of 10000000111111 is 11111100000001.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 10000000111111 - 2¹ = 10000000111109 is a prime.

It is a Duffinian number.

10000000111111 is a modest number, since divided by 111111 gives 10 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 10000000111094 and 10000000111103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10000000111411) 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, 67704001 + ... + 67851541.

It is an arithmetic number, because the mean of its divisors is an integer number (638045379000).

Almost surely, 2^{10000000111111} is an apocalyptic number.

10000000111111 is a deficient number, since it is larger than the sum of its proper divisors (208725952889).

10000000111111 is a wasteful number, since it uses less digits than its factorization.

10000000111111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152490.

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

Adding to 10000000111111 its reverse (11111100000001), we get a palindrome (21111100111112).

It can be divided in two parts, 100000001 and 11111, that multiplied together give a palindrome (1111100011111).

The spelling of 10000000111111 in words is "ten trillion, one hundred eleven thousand, one hundred eleven".