113221304442 has 48 divisors (see below), whose sum is σ = 255539531520. Its totient is φ = 37571159232.

The previous prime is 113221304401. The next prime is 113221304447. The reversal of 113221304442 is 244403122311.

113221304442 is a `hidden beast` number, since 1 + 1 + 3 + 2 + 213 + 0 + 4 + 442 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (113221304447) 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, 413967 + ... + 630722.

It is an arithmetic number, because the mean of its divisors is an integer number (5323740240).

Almost surely, 2^113221304442 is an apocalyptic number.

113221304442 is an abundant number, since it is smaller than the sum of its proper divisors (142318227078).

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

113221304442 is a wasteful number, since it uses less digits than its factorization.

113221304442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1044929 (or 1044917 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 113221304442 its reverse (244403122311), we get a palindrome (357624426753).

The spelling of 113221304442 in words is "one hundred thirteen billion, two hundred twenty-one million, three hundred four thousand, four hundred forty-two".