1100111020121 has 8 divisors (see below), whose sum is σ = 1110477721824. Its totient is φ = 1089745898080.

The previous prime is 1100111020109. The next prime is 1100111020123. The reversal of 1100111020121 is 1210201110011.

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 1100111020121 - 2¹⁴ = 1100111003737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1100111020123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1028546 + ... + 1805028.

It is an arithmetic number, because the mean of its divisors is an integer number (138809715228).

Almost surely, 2^{1100111020121} is an apocalyptic number.

It is an amenable number.

1100111020121 is a deficient number, since it is larger than the sum of its proper divisors (10366701703).

1100111020121 is a wasteful number, since it uses less digits than its factorization.

1100111020121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 789831.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 1100111020121 its reverse (1210201110011), we get a palindrome (2310312130132).

The spelling of 1100111020121 in words is "one trillion, one hundred billion, one hundred eleven million, twenty thousand, one hundred twenty-one".