11121120111 has 8 divisors (see below), whose sum is σ = 14829357744. Its totient is φ = 7413481280.

The previous prime is 11121120107. The next prime is 11121120133. The reversal of 11121120111 is 11102112111.

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 11121120111 - 2² = 11121120107 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11121120161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104406 + ... + 182051.

It is an arithmetic number, because the mean of its divisors is an integer number (1853669718).

Almost surely, 2^11121120111 is an apocalyptic number.

11121120111 is a deficient number, since it is larger than the sum of its proper divisors (3708237633).

11121120111 is a wasteful number, since it uses less digits than its factorization.

11121120111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299401.

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 11121120111 its reverse (11102112111), we get a palindrome (22223232222).

The spelling of 11121120111 in words is "eleven billion, one hundred twenty-one million, one hundred twenty thousand, one hundred eleven".