1121000111 has 64 divisors (see below), whose sum is σ = 1529902080. Its totient is φ = 794880000.

The previous prime is 1121000093. The next prime is 1121000119. The reversal of 1121000111 is 1110001211.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1121000111 - 2²⁶ = 1053891247 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121000119) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8064680 + ... + 8064818.

It is an arithmetic number, because the mean of its divisors is an integer number (23904720).

Almost surely, 2^1121000111 is an apocalyptic number.

1121000111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1121000111 is a deficient number, since it is larger than the sum of its proper divisors (408901969).

1121000111 is a wasteful number, since it uses less digits than its factorization.

1121000111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336.

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

The square root of 1121000111 is about 33481.3397432062. The cubic root of 1121000111 is about 1038.8078397456.

Adding to 1121000111 its reverse (1110001211), we get a palindrome (2231001322).

The spelling of 1121000111 in words is "one billion, one hundred twenty-one million, one hundred eleven", and thus it is an aban number.