113021042 has 4 divisors (see below), whose sum is σ = 169531566. Its totient is φ = 56510520.

The previous prime is 113021021. The next prime is 113021053. The reversal of 113021042 is 240120311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 240120311 = 137 ⋅1752703.

It can be written as a sum of positive squares in only one way, i.e., 75186241 + 37834801 = 8671^2 + 6151^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28255259 + ... + 28255262.

Almost surely, 2^113021042 is an apocalyptic number.

113021042 is a deficient number, since it is larger than the sum of its proper divisors (56510524).

113021042 is an equidigital number, since it uses as much as digits as its factorization.

113021042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56510523.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 113021042 is about 10631.1354990895. The cubic root of 113021042 is about 483.4888195223.

Adding to 113021042 its reverse (240120311), we get a palindrome (353141353).

The spelling of 113021042 in words is "one hundred thirteen million, twenty-one thousand, forty-two".