113205061242 has 128 divisors (see below), whose sum is σ = 325916774400. Its totient is φ = 28284873408.

The previous prime is 113205061219. The next prime is 113205061303. The reversal of 113205061242 is 242160502311.

113205061242 is a `hidden beast` number, since 1 + 1 + 3 + 2 + 0 + 5 + 0 + 612 + 42 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 512878 + ... + 699609.

It is an arithmetic number, because the mean of its divisors is an integer number (2546224800).

Almost surely, 2^113205061242 is an apocalyptic number.

113205061242 is an abundant number, since it is smaller than the sum of its proper divisors (212711713158).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

113205061242 is a wasteful number, since it uses less digits than its factorization.

113205061242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1212537 (or 1212531 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

Adding to 113205061242 its reverse (242160502311), we get a palindrome (355365563553).

The spelling of 113205061242 in words is "one hundred thirteen billion, two hundred five million, sixty-one thousand, two hundred forty-two".