1100112001001 has 8 divisors (see below), whose sum is σ = 1184986381320. Its totient is φ = 1015273389312.

The previous prime is 1100112000877. The next prime is 1100112001007. The reversal of 1100112001001 is 1001002110011.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 7827825625 + 1092284175376 = 88475^2 + 1045124^2 .

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

It is a de Polignac number, because none of the positive numbers 2^k-1100112001001 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 1100112001001.

It is not an unprimeable number, because it can be changed into a prime (1100112001007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8878256 + ... + 9001313.

It is an arithmetic number, because the mean of its divisors is an integer number (148123297665).

Almost surely, 2^{1100112001001} is an apocalyptic number.

It is an amenable number.

1100112001001 is a deficient number, since it is larger than the sum of its proper divisors (84874380319).

1100112001001 is a wasteful number, since it uses less digits than its factorization.

1100112001001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17884315.

The product of its (nonzero) digits is 2, while the sum is 8.

Adding to 1100112001001 its reverse (1001002110011), we get a palindrome (2101114111012).

The spelling of 1100112001001 in words is "one trillion, one hundred billion, one hundred twelve million, one thousand, one".