1112005531 has 16 divisors (see below), whose sum is σ = 1385121024. Its totient is φ = 869222304.

The previous prime is 1112005519. The next prime is 1112005549. The reversal of 1112005531 is 1355002111.

It is a cyclic number.

It is not a de Polignac number, because 1112005531 - 2⁹ = 1112005019 is a prime.

It is a super-2 number, since 2×1112005531² = 2473112601949183922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1112005499 and 1112005508.

It is not an unprimeable number, because it can be changed into a prime (1112005331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66061 + ... + 81166.

It is an arithmetic number, because the mean of its divisors is an integer number (86570064).

Almost surely, 2^1112005531 is an apocalyptic number.

1112005531 is a deficient number, since it is larger than the sum of its proper divisors (273115493).

1112005531 is a wasteful number, since it uses less digits than its factorization.

1112005531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147330.

The product of its (nonzero) digits is 150, while the sum is 19.

The square root of 1112005531 is about 33346.7469327969. The cubic root of 1112005531 is about 1036.0220111675.

Adding to 1112005531 its reverse (1355002111), we get a palindrome (2467007642).

The spelling of 1112005531 in words is "one billion, one hundred twelve million, five thousand, five hundred thirty-one".