42031330001 has 4 divisors (see below), whose sum is σ = 42031891812. Its totient is φ = 42030768192.

The previous prime is 42031329979. The next prime is 42031330027. The reversal of 42031330001 is 10003313024.

It is a happy number.

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 31488147601 + 10543182400 = 177449^2 + 102680^2 .

It is a cyclic number.

It is not a de Polignac number, because 42031330001 - 2⁶ = 42031329937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42031330051) 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, 147596 + ... + 325341.

It is an arithmetic number, because the mean of its divisors is an integer number (10507972953).

Almost surely, 2^42031330001 is an apocalyptic number.

It is an amenable number.

42031330001 is a deficient number, since it is larger than the sum of its proper divisors (561811).

42031330001 is an equidigital number, since it uses as much as digits as its factorization.

42031330001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 561810.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 42031330001 its reverse (10003313024), we get a palindrome (52034643025).

The spelling of 42031330001 in words is "forty-two billion, thirty-one million, three hundred thirty thousand, one".