113856812361 has 12 divisors (see below), whose sum is σ = 164816591940. Its totient is φ = 75739886880.

The previous prime is 113856812287. The next prime is 113856812383. The reversal of 113856812361 is 163218658311.

113856812361 is a `hidden beast` number, since 1 + 1 + 3 + 8 + 568 + 1 + 23 + 61 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 14533508025 + 99323304336 = 120555^2 + 315156^2 .

It is not a de Polignac number, because 113856812361 - 2⁷ = 113856812233 is a prime.

It is not an unprimeable number, because it can be changed into a prime (113856812161) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13716846 + ... + 13725143.

It is an arithmetic number, because the mean of its divisors is an integer number (13734715995).

Almost surely, 2^113856812361 is an apocalyptic number.

It is an amenable number.

113856812361 is a deficient number, since it is larger than the sum of its proper divisors (50959779579).

113856812361 is a wasteful number, since it uses less digits than its factorization.

113856812361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27442456 (or 27442453 counting only the distinct ones).

The product of its digits is 207360, while the sum is 45.

The spelling of 113856812361 in words is "one hundred thirteen billion, eight hundred fifty-six million, eight hundred twelve thousand, three hundred sixty-one".