111100001001 has 8 divisors (see below), whose sum is σ = 161600001504. Its totient is φ = 67333333920.

The previous prime is 111100000997. The next prime is 111100001003. The reversal of 111100001001 is 100100001111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 111100001001 - 2² = 111100000997 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111100001003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1683333316 + ... + 1683333381.

It is an arithmetic number, because the mean of its divisors is an integer number (20200000188).

Almost surely, 2^111100001001 is an apocalyptic number.

111100001001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

111100001001 is a deficient number, since it is larger than the sum of its proper divisors (50500000503).

111100001001 is a wasteful number, since it uses less digits than its factorization.

111100001001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3366666711.

The product of its (nonzero) digits is 1, while the sum is 6.

Adding to 111100001001 its reverse (100100001111), we get a palindrome (211200002112).

The spelling of 111100001001 in words is "one hundred eleven billion, one hundred million, one thousand, one".