111001001011001 has 8 divisors (see below), whose sum is σ = 111708281520000. Its totient is φ = 110293723891728.

The previous prime is 111001001010961. The next prime is 111001001011007. The reversal of 111001001011001 is 100110100100111.

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 111001001011001 - 2⁶ = 111001001010937 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 111001001011001.

It is not an unprimeable number, because it can be changed into a prime (111001001011007) 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, 116096240 + ... + 117048446.

It is an arithmetic number, because the mean of its divisors is an integer number (13963535190000).

Almost surely, 2^{111001001011001} is an apocalyptic number.

It is an amenable number.

111001001011001 is a deficient number, since it is larger than the sum of its proper divisors (707280508999).

111001001011001 is an equidigital number, since it uses as much as digits as its factorization.

111001001011001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1694863.

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

Adding to 111001001011001 its reverse (100110100100111), we get a palindrome (211111101111112).

The spelling of 111001001011001 in words is "one hundred eleven trillion, one billion, one million, eleven thousand, one".