113200021442 has 4 divisors (see below), whose sum is σ = 169800032166. Its totient is φ = 56600010720.

The previous prime is 113200021439. The next prime is 113200021469. The reversal of 113200021442 is 244120002311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 244120002311 = 61 ⋅4001967251.

It can be written as a sum of positive squares in only one way, i.e., 59756291401 + 53443730041 = 244451^2 + 231179^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28300005359 + ... + 28300005362.

Almost surely, 2^113200021442 is an apocalyptic number.

113200021442 is a deficient number, since it is larger than the sum of its proper divisors (56600010724).

113200021442 is an equidigital number, since it uses as much as digits as its factorization.

113200021442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56600010723.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 113200021442 its reverse (244120002311), we get a palindrome (357320023753).

The spelling of 113200021442 in words is "one hundred thirteen billion, two hundred million, twenty-one thousand, four hundred forty-two".