1131120111 has 8 divisors (see below), whose sum is σ = 1645265664. Its totient is φ = 685527320.

The previous prime is 1131120097. The next prime is 1131120113. The reversal of 1131120111 is 1110211311.

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 1131120111 - 2⁶ = 1131120047 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131120113) 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, 17138151 + ... + 17138216.

It is an arithmetic number, because the mean of its divisors is an integer number (205658208).

Almost surely, 2^1131120111 is an apocalyptic number.

1131120111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1131120111 is a deficient number, since it is larger than the sum of its proper divisors (514145553).

1131120111 is a wasteful number, since it uses less digits than its factorization.

1131120111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34276381.

The product of its (nonzero) digits is 6, while the sum is 12.

The square root of 1131120111 is about 33632.1291475874. The cubic root of 1131120111 is about 1041.9244787300.

Adding to 1131120111 its reverse (1110211311), we get a palindrome (2241331422).

The spelling of 1131120111 in words is "one billion, one hundred thirty-one million, one hundred twenty thousand, one hundred eleven".