442520235203 has 4 divisors (see below), whose sum is σ = 442815447000. Its totient is φ = 442225023408.

The previous prime is 442520235163. The next prime is 442520235211. The reversal of 442520235203 is 302532025244.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-442520235203 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 442520235203.

It is not an unprimeable number, because it can be changed into a prime (442520235233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 147603650 + ... + 147606647.

It is an arithmetic number, because the mean of its divisors is an integer number (110703861750).

Almost surely, 2^442520235203 is an apocalyptic number.

442520235203 is a deficient number, since it is larger than the sum of its proper divisors (295211797).

442520235203 is a wasteful number, since it uses less digits than its factorization.

442520235203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295211796.

The product of its (nonzero) digits is 57600, while the sum is 32.

The spelling of 442520235203 in words is "four hundred forty-two billion, five hundred twenty million, two hundred thirty-five thousand, two hundred three".