111001011100001 has 8 divisors (see below), whose sum is σ = 121114284017664. Its totient is φ = 100891450167120.

The previous prime is 111001011099997. The next prime is 111001011100019. The reversal of 111001011100001 is 100001110100111.

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

It is a cyclic number.

It is not a de Polignac number, because 111001011100001 - 2² = 111001011099997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111001011106001) 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, 927933665 + ... + 928053278.

It is an arithmetic number, because the mean of its divisors is an integer number (15139285502208).

Almost surely, 2^{111001011100001} is an apocalyptic number.

111001011100001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

111001011100001 is a deficient number, since it is larger than the sum of its proper divisors (10113272917663).

111001011100001 is a wasteful number, since it uses less digits than its factorization.

111001011100001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1855992391.

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

Adding to 111001011100001 its reverse (100001110100111), we get a palindrome (211002121200112).

It can be divided in two parts, 11100 and 1011100001, that added together give a palindrome (1011111101).

The spelling of 111001011100001 in words is "one hundred eleven trillion, one billion, eleven million, one hundred thousand, one".