11100001111001 has 4 divisors (see below), whose sum is σ = 12109092121104. Its totient is φ = 10090910100900.

The previous prime is 11100001110973. The next prime is 11100001111117. The reversal of 11100001111001 is 10011110000111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11100001111001 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11100001111001.

It is not an unprimeable number, because it can be changed into a prime (11100001141001) 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, 504545505035 + ... + 504545505056.

It is an arithmetic number, because the mean of its divisors is an integer number (3027273030276).

Almost surely, 2^{11100001111001} is an apocalyptic number.

11100001111001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11100001111001 is a deficient number, since it is larger than the sum of its proper divisors (1009091010103).

11100001111001 is a wasteful number, since it uses less digits than its factorization.

11100001111001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1009091010102.

The product of its (nonzero) digits is 1, while the sum is 8.

Adding to 11100001111001 its reverse (10011110000111), we get a palindrome (21111111111112).

It can be divided in two parts, 1110000111 and 1001, that multiplied together give a palindrome (1111110111111).

The spelling of 11100001111001 in words is "eleven trillion, one hundred billion, one million, one hundred eleven thousand, one".