42122113 has 4 divisors (see below), whose sum is σ = 45951408. Its totient is φ = 38292820.

The previous prime is 42122083. The next prime is 42122117. The reversal of 42122113 is 31122124.

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 42122113 - 2²⁵ = 8567681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42122117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1914631 + ... + 1914652.

It is an arithmetic number, because the mean of its divisors is an integer number (11487852).

Almost surely, 2^42122113 is an apocalyptic number.

It is an amenable number.

42122113 is a deficient number, since it is larger than the sum of its proper divisors (3829295).

42122113 is a wasteful number, since it uses less digits than its factorization.

42122113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3829294.

The product of its digits is 96, while the sum is 16.

The square root of 42122113 is about 6490.1550828929. The cubic root of 42122113 is about 347.9392179262.

Adding to 42122113 its reverse (31122124), we get a palindrome (73244237).

The spelling of 42122113 in words is "forty-two million, one hundred twenty-two thousand, one hundred thirteen".