11110001111111 has 16 divisors (see below), whose sum is σ = 12725406313536. Its totient is φ = 9501680111616.

The previous prime is 11110001111107. The next prime is 11110001111141. The reversal of 11110001111111 is 11111110001111.

It is not a de Polignac number, because 11110001111111 - 2² = 11110001111107 is a prime.

11110001111111 is a modest number, since divided by 1111111 gives 1111000 as remainder.

It is a zygodrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 11110001111092 and 11110001111101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11110001111141) 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, 6380375 + ... + 7932791.

It is an arithmetic number, because the mean of its divisors is an integer number (795337894596).

Almost surely, 2^{11110001111111} is an apocalyptic number.

11110001111111 is a deficient number, since it is larger than the sum of its proper divisors (1615405202425).

11110001111111 is a wasteful number, since it uses less digits than its factorization.

11110001111111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1554698.

The product of its (nonzero) digits is 1, while the sum is 11.

Adding to 11110001111111 its reverse (11111110001111), we get a palindrome (22221111112222).

Subtracting 11110001111111 from its reverse (11111110001111), we obtain a square (1108890000 = 33300²).

It can be divided in two parts, 11110001111 and 111, that multiplied together give a palindrome (1233210123321).

The spelling of 11110001111111 in words is "eleven trillion, one hundred ten billion, one million, one hundred eleven thousand, one hundred eleven".