42020113 has 4 divisors (see below), whose sum is σ = 42208768. Its totient is φ = 41831460.

The previous prime is 42020093. The next prime is 42020131. The reversal of 42020113 is 31102024.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42020113 - 2¹⁷ = 41889041 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42020093 and 42020102.

It is not an unprimeable number, because it can be changed into a prime (42027113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93993 + ... + 94438.

It is an arithmetic number, because the mean of its divisors is an integer number (10552192).

Almost surely, 2^42020113 is an apocalyptic number.

It is an amenable number.

42020113 is a deficient number, since it is larger than the sum of its proper divisors (188655).

42020113 is a wasteful number, since it uses less digits than its factorization.

42020113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188654.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 42020113 is about 6482.2922643151. The cubic root of 42020113 is about 347.6581423988.

Adding to 42020113 its reverse (31102024), we get a palindrome (73122137).

The spelling of 42020113 in words is "forty-two million, twenty thousand, one hundred thirteen".