142224140321 has 16 divisors (see below), whose sum is σ = 147901178304. Its totient is φ = 136660353984.

The previous prime is 142224140287. The next prime is 142224140339. The reversal of 142224140321 is 123041422241.

It is a cyclic number.

It is not a de Polignac number, because 142224140321 - 2²² = 142219946017 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 (142224140021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2148311 + ... + 2213523.

It is an arithmetic number, because the mean of its divisors is an integer number (9243823644).

Almost surely, 2^142224140321 is an apocalyptic number.

It is an amenable number.

142224140321 is a deficient number, since it is larger than the sum of its proper divisors (5677037983).

142224140321 is an equidigital number, since it uses as much as digits as its factorization.

142224140321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66080.

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 142224140321 its reverse (123041422241), we get a palindrome (265265562562).

The spelling of 142224140321 in words is "one hundred forty-two billion, two hundred twenty-four million, one hundred forty thousand, three hundred twenty-one".