42020143001 has 4 divisors (see below), whose sum is σ = 42027534900. Its totient is φ = 42012751104.

The previous prime is 42020142977. The next prime is 42020143003. The reversal of 42020143001 is 10034102024.

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 27421704025 + 14598438976 = 165595^2 + 120824^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42020143001 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (42020143003) 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, 3687416 + ... + 3698793.

It is an arithmetic number, because the mean of its divisors is an integer number (10506883725).

Almost surely, 2^42020143001 is an apocalyptic number.

It is an amenable number.

42020143001 is a deficient number, since it is larger than the sum of its proper divisors (7391899).

42020143001 is an equidigital number, since it uses as much as digits as its factorization.

42020143001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7391898.

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

Adding to 42020143001 its reverse (10034102024), we get a palindrome (52054245025).

The spelling of 42020143001 in words is "forty-two billion, twenty million, one hundred forty-three thousand, one".