1111001001101 has 4 divisors (see below), whose sum is σ = 1146839743104. Its totient is φ = 1075162259100.

The previous prime is 1111001001013. The next prime is 1111001001107. The reversal of 1111001001101 is 1011001001111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1111001001101 - 2³⁴ = 1093821131917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111001001107) 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 3 ways as a sum of consecutive naturals, for example, 17919370955 + ... + 17919371016.

It is an arithmetic number, because the mean of its divisors is an integer number (286709935776).

Almost surely, 2^{1111001001101} is an apocalyptic number.

It is an amenable number.

1111001001101 is a deficient number, since it is larger than the sum of its proper divisors (35838742003).

1111001001101 is an equidigital number, since it uses as much as digits as its factorization.

1111001001101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35838742002.

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

Adding to 1111001001101 its reverse (1011001001111), we get a palindrome (2122002002212).

The spelling of 1111001001101 in words is "one trillion, one hundred eleven billion, one million, one thousand, one hundred one".