111110011001 has 16 divisors (see below), whose sum is σ = 121561560000. Its totient is φ = 100717209600.

The previous prime is 111110010959. The next prime is 111110011003. The reversal of 111110011001 is 100110011111.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111110011001 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 111110011001.

It is not an unprimeable number, because it can be changed into a prime (111110011003) 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, 8384741 + ... + 8397981.

It is an arithmetic number, because the mean of its divisors is an integer number (7597597500).

Almost surely, 2^111110011001 is an apocalyptic number.

111110011001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

111110011001 is a deficient number, since it is larger than the sum of its proper divisors (10451548999).

111110011001 is a wasteful number, since it uses less digits than its factorization.

111110011001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15400.

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

Adding to 111110011001 its reverse (100110011111), we get a palindrome (211220022112).

It can be divided in two parts, 1111 and 10011001, that multiplied together give a palindrome (11122222111).

The spelling of 111110011001 in words is "one hundred eleven billion, one hundred ten million, eleven thousand, one".