1110011001001 has 16 divisors (see below), whose sum is σ = 1272496877568. Its totient is φ = 948505694400.

The previous prime is 1110011000993. The next prime is 1110011001013. The reversal of 1110011001001 is 1001001100111.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1110011001001 - 2³ = 1110011000993 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (1110011001101) 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, 5643331 + ... + 5836711.

It is an arithmetic number, because the mean of its divisors is an integer number (79531054848).

Almost surely, 2^{1110011001001} is an apocalyptic number.

It is an amenable number.

1110011001001 is a deficient number, since it is larger than the sum of its proper divisors (162485876567).

1110011001001 is a wasteful number, since it uses less digits than its factorization.

1110011001001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195912.

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

Adding to 1110011001001 its reverse (1001001100111), we get a palindrome (2111012101112).

The spelling of 1110011001001 in words is "one trillion, one hundred ten billion, eleven million, one thousand, one".