1112133231 has 48 divisors (see below), whose sum is σ = 1789426080. Its totient is φ = 659957760.

The previous prime is 1112133229. The next prime is 1112133259. The reversal of 1112133231 is 1323312111.

1112133231 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1112133231 - 2¹ = 1112133229 is a prime.

It is a super-2 number, since 2×1112133231² = 2473680646988998722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1112133131) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 995085 + ... + 996201.

It is an arithmetic number, because the mean of its divisors is an integer number (37279710).

Almost surely, 2^1112133231 is an apocalyptic number.

1112133231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1112133231 is a deficient number, since it is larger than the sum of its proper divisors (677292849).

1112133231 is a wasteful number, since it uses less digits than its factorization.

1112133231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1336 (or 1333 counting only the distinct ones).

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

The square root of 1112133231 is about 33348.6616073269. The cubic root of 1112133231 is about 1036.0616677289.

Adding to 1112133231 its reverse (1323312111), we get a palindrome (2435445342).

The spelling of 1112133231 in words is "one billion, one hundred twelve million, one hundred thirty-three thousand, two hundred thirty-one".