111000110011001 has 4 divisors (see below), whose sum is σ = 111318161902500. Its totient is φ = 110682058119504.

The previous prime is 111000110010931. The next prime is 111000110011003. The reversal of 111000110011001 is 100110011000111.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 96536913102400 + 14463196908601 = 9825320^2 + 3803051^2 .

It is a cyclic number.

It is not a de Polignac number, because 111000110011001 - 2⁴⁶ = 40631365833337 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 111000110011001.

It is not an unprimeable number, because it can be changed into a prime (111000110011003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 159025945226 + ... + 159025945923.

It is an arithmetic number, because the mean of its divisors is an integer number (27829540475625).

Almost surely, 2^{111000110011001} is an apocalyptic number.

It is an amenable number.

111000110011001 is a deficient number, since it is larger than the sum of its proper divisors (318051891499).

111000110011001 is an equidigital number, since it uses as much as digits as its factorization.

111000110011001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318051891498.

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

Adding to 111000110011001 its reverse (100110011000111), we get a palindrome (211110121011112).

The spelling of 111000110011001 in words is "one hundred eleven trillion, one hundred ten million, eleven thousand, one".