112434531561 has 24 divisors (see below), whose sum is σ = 177180778944. Its totient is φ = 68137827360.

The previous prime is 112434531557. The next prime is 112434531569. The reversal of 112434531561 is 165135434211.

112434531561 is a `hidden beast` number, since 1 + 1 + 2 + 43 + 4 + 53 + 1 + 561 = 666.

It is not a de Polignac number, because 112434531561 - 2² = 112434531557 is a prime.

It is not an unprimeable number, because it can be changed into a prime (112434531569) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2297035 + ... + 2345471.

It is an arithmetic number, because the mean of its divisors is an integer number (7382532456).

Almost surely, 2^112434531561 is an apocalyptic number.

112434531561 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

112434531561 is a deficient number, since it is larger than the sum of its proper divisors (64746247383).

112434531561 is a wasteful number, since it uses less digits than its factorization.

112434531561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71901 (or 71898 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

Adding to 112434531561 its reverse (165135434211), we get a palindrome (277569965772).

The spelling of 112434531561 in words is "one hundred twelve billion, four hundred thirty-four million, five hundred thirty-one thousand, five hundred sixty-one".