42020201213 has 4 divisors (see below), whose sum is σ = 42021225948. Its totient is φ = 42019176480.

The previous prime is 42020201207. The next prime is 42020201273. The reversal of 42020201213 is 31210202024.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 25254612889 + 16765588324 = 158917^2 + 129482^2 .

It is a cyclic number.

It is not a de Polignac number, because 42020201213 - 2¹⁸ = 42019939069 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42020201191 and 42020201200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42020201273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 448178 + ... + 533763.

It is an arithmetic number, because the mean of its divisors is an integer number (10505306487).

Almost surely, 2^42020201213 is an apocalyptic number.

It is an amenable number.

42020201213 is a deficient number, since it is larger than the sum of its proper divisors (1024735).

42020201213 is an equidigital number, since it uses as much as digits as its factorization.

42020201213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1024734.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 42020201213 its reverse (31210202024), we get a palindrome (73230403237).

The spelling of 42020201213 in words is "forty-two billion, twenty million, two hundred one thousand, two hundred thirteen".