11110111100001 has 24 divisors (see below), whose sum is σ = 16481880544064. Its totient is φ = 7206464881440.

The previous prime is 11110111099973. The next prime is 11110111100009. The reversal of 11110111100001 is 10000111101111.

It is not a de Polignac number, because 11110111100001 - 2⁶ = 11110111099937 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11110111100009) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33130170 + ... + 33463836.

Almost surely, 2^{11110111100001} is an apocalyptic number.

It is an amenable number.

11110111100001 is a deficient number, since it is larger than the sum of its proper divisors (5371769444063).

11110111100001 is a wasteful number, since it uses less digits than its factorization.

11110111100001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433701 (or 433698 counting only the distinct ones).

The product of its (nonzero) digits is 1, while the sum is 9.

Adding to 11110111100001 its reverse (10000111101111), we get a palindrome (21110222201112).

It can be divided in two parts, 11110 and 111100001, that added together give a palindrome (111111111).

The spelling of 11110111100001 in words is "eleven trillion, one hundred ten billion, one hundred eleven million, one hundred thousand, one".