1121112311 has 12 divisors (see below), whose sum is σ = 1304787456. Its totient is φ = 959238720.

The previous prime is 1121112257. The next prime is 1121112389. The reversal of 1121112311 is 1132111211.

It is not a de Polignac number, because 1121112311 - 2³⁰ = 47370487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111112311) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 270455 + ... + 274568.

It is an arithmetic number, because the mean of its divisors is an integer number (108732288).

Almost surely, 2^1121112311 is an apocalyptic number.

1121112311 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1121112311 is a deficient number, since it is larger than the sum of its proper divisors (183675145).

1121112311 is a wasteful number, since it uses less digits than its factorization.

1121112311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 545062 (or 545051 counting only the distinct ones).

The product of its digits is 12, while the sum is 14.

The square root of 1121112311 is about 33483.0152614725. The cubic root of 1121112311 is about 1038.8424964033.

Adding to 1121112311 its reverse (1132111211), we get a palindrome (2253223522).

The spelling of 1121112311 in words is "one billion, one hundred twenty-one million, one hundred twelve thousand, three hundred eleven".