42021301 has 4 divisors (see below), whose sum is σ = 48024352. Its totient is φ = 36018252.

The previous prime is 42021257. The next prime is 42021313. The reversal of 42021301 is 10312024.

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 42021301 - 2⁷ = 42021173 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42021341) 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, 3001515 + ... + 3001528.

It is an arithmetic number, because the mean of its divisors is an integer number (12006088).

Almost surely, 2^42021301 is an apocalyptic number.

It is an amenable number.

42021301 is a deficient number, since it is larger than the sum of its proper divisors (6003051).

42021301 is an equidigital number, since it uses as much as digits as its factorization.

42021301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6003050.

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

The square root of 42021301 is about 6482.3838979190. The cubic root of 42021301 is about 347.6614187186.

Adding to 42021301 its reverse (10312024), we get a palindrome (52333325).

The spelling of 42021301 in words is "forty-two million, twenty-one thousand, three hundred one".