142320224441 has 4 divisors (see below), whose sum is σ = 142324960884. Its totient is φ = 142315488000.

The previous prime is 142320224429. The next prime is 142320224479. The reversal of 142320224441 is 144422023241.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 144422023241 = 6869 ⋅21025189.

It can be written as a sum of positive squares in 2 ways, for example, as 51538534441 + 90781690000 = 227021^2 + 301300^2 .

It is a cyclic number.

It is not a de Polignac number, because 142320224441 - 2¹⁰ = 142320223417 is a prime.

It is a super-2 number, since 2×142320224441² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142320224401) 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, 2322860 + ... + 2383341.

It is an arithmetic number, because the mean of its divisors is an integer number (35581240221).

Almost surely, 2^142320224441 is an apocalyptic number.

It is an amenable number.

142320224441 is a deficient number, since it is larger than the sum of its proper divisors (4736443).

142320224441 is an equidigital number, since it uses as much as digits as its factorization.

142320224441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4736442.

The product of its (nonzero) digits is 12288, while the sum is 29.

Adding to 142320224441 its reverse (144422023241), we get a palindrome (286742247682).

The spelling of 142320224441 in words is "one hundred forty-two billion, three hundred twenty million, two hundred twenty-four thousand, four hundred forty-one".