442423203141 has 4 divisors (see below), whose sum is σ = 589897604192. Its totient is φ = 294948802092.

The previous prime is 442423203139. The next prime is 442423203329. The reversal of 442423203141 is 141302324244.

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 not a de Polignac number, because 442423203141 - 2¹ = 442423203139 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 442423203099 and 442423203108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442423204141) 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, 73737200521 + ... + 73737200526.

It is an arithmetic number, because the mean of its divisors is an integer number (147474401048).

Almost surely, 2^442423203141 is an apocalyptic number.

It is an amenable number.

442423203141 is a deficient number, since it is larger than the sum of its proper divisors (147474401051).

442423203141 is a wasteful number, since it uses less digits than its factorization.

442423203141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147474401050.

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 442423203141 its reverse (141302324244), we get a palindrome (583725527385).

The spelling of 442423203141 in words is "four hundred forty-two billion, four hundred twenty-three million, two hundred three thousand, one hundred forty-one".