112511538581 has 12 divisors (see below), whose sum is σ = 124424200512. Its totient is φ = 101647078416.

The previous prime is 112511538533. The next prime is 112511538611. The reversal of 112511538581 is 185835115211.

It is not a de Polignac number, because 112511538581 - 2¹⁰ = 112511537557 is a prime.

It is a super-2 number, since 2×112511538581² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112511538781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7074491 + ... + 7090376.

It is an arithmetic number, because the mean of its divisors is an integer number (10368683376).

Almost surely, 2^112511538581 is an apocalyptic number.

It is an amenable number.

112511538581 is a deficient number, since it is larger than the sum of its proper divisors (11912661931).

112511538581 is a wasteful number, since it uses less digits than its factorization.

112511538581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14164940 (or 14164927 counting only the distinct ones).

The product of its digits is 48000, while the sum is 41.

The spelling of 112511538581 in words is "one hundred twelve billion, five hundred eleven million, five hundred thirty-eight thousand, five hundred eighty-one".