11110001001001 has 16 divisors (see below), whose sum is σ = 12857589456768. Its totient is φ = 9402657264000.

The previous prime is 11110001000993. The next prime is 11110001001049. The reversal of 11110001001001 is 10010010001111.

It is a happy number.

11110001001001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11110001001001 - 2³ = 11110001000993 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (7).

11110001001001 is a modest number, since divided by 1001001 gives 11110 as remainder.

It is not an unprimeable number, because it can be changed into a prime (11110001001091) 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, 4555650 + ... + 6555451.

It is an arithmetic number, because the mean of its divisors is an integer number (803599341048).

Almost surely, 2^{11110001001001} is an apocalyptic number.

It is an amenable number.

11110001001001 is a deficient number, since it is larger than the sum of its proper divisors (1747588455767).

11110001001001 is a wasteful number, since it uses less digits than its factorization.

11110001001001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11112912.

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

Adding to 11110001001001 its reverse (10010010001111), we get a palindrome (21120011002112).

The spelling of 11110001001001 in words is "eleven trillion, one hundred ten billion, one million, one thousand, one".