1121120200111 has 4 divisors (see below), whose sum is σ = 1132004862352. Its totient is φ = 1110235537872.

The previous prime is 1121120200021. The next prime is 1121120200133. The reversal of 1121120200111 is 1110020211211.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1121120200111 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1121120200091 and 1121120200100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121120200171) 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, 5442330966 + ... + 5442331171.

It is an arithmetic number, because the mean of its divisors is an integer number (283001215588).

Almost surely, 2^{1121120200111} is an apocalyptic number.

1121120200111 is a deficient number, since it is larger than the sum of its proper divisors (10884662241).

1121120200111 is a wasteful number, since it uses less digits than its factorization.

1121120200111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10884662240.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 1121120200111 its reverse (1110020211211), we get a palindrome (2231140411322).

It can be divided in two parts, 1121120 and 200111, that added together give a palindrome (1321231).

The spelling of 1121120200111 in words is "one trillion, one hundred twenty-one billion, one hundred twenty million, two hundred thousand, one hundred eleven".