1121233113 has 96 divisors (see below), whose sum is σ = 2302739712. Its totient is φ = 505958400.

The previous prime is 1121233051. The next prime is 1121233117. The reversal of 1121233113 is 3113321211.

It is not a de Polignac number, because 1121233113 - 2¹² = 1121229017 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1121233117) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 149493 + ... + 156813.

It is an arithmetic number, because the mean of its divisors is an integer number (23986872).

Almost surely, 2^1121233113 is an apocalyptic number.

1121233113 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1121233113 is an abundant number, since it is smaller than the sum of its proper divisors (1181506599).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1121233113 is a wasteful number, since it uses less digits than its factorization.

1121233113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7375 (or 7372 counting only the distinct ones).

The product of its digits is 108, while the sum is 18.

The square root of 1121233113 is about 33484.8191424114. The cubic root of 1121233113 is about 1038.8798074865.

Adding to 1121233113 its reverse (3113321211), we get a palindrome (4234554324).

The spelling of 1121233113 in words is "one billion, one hundred twenty-one million, two hundred thirty-three thousand, one hundred thirteen".