1112133031 has 4 divisors (see below), whose sum is σ = 1120890112. Its totient is φ = 1103375952.

The previous prime is 1112132953. The next prime is 1112133097. The reversal of 1112133031 is 1303312111.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1112133031 is a prime.

It is a super-2 number, since 2×1112133031² = 2473679757282493922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1112132996 and 1112133014.

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 3 ways as a sum of consecutive naturals, for example, 4378350 + ... + 4378603.

It is an arithmetic number, because the mean of its divisors is an integer number (280222528).

Almost surely, 2^1112133031 is an apocalyptic number.

1112133031 is a deficient number, since it is larger than the sum of its proper divisors (8757081).

1112133031 is an equidigital number, since it uses as much as digits as its factorization.

1112133031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8757080.

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 1112133031 is about 33348.6586087057. The cubic root of 1112133031 is about 1036.0616056223.

Adding to 1112133031 its reverse (1303312111), we get a palindrome (2415445142).

It can be divided in two parts, 111213 and 3031, that added together give a square (114244 = 338²).

The spelling of 1112133031 in words is "one billion, one hundred twelve million, one hundred thirty-three thousand, thirty-one".