142221605323 has 8 divisors (see below), whose sum is σ = 168143770080. Its totient is φ = 117700638720.

The previous prime is 142221605321. The next prime is 142221605329. The reversal of 142221605323 is 323506122241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 142221605323 - 2¹ = 142221605321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142221605321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 350299318 + ... + 350299723.

It is an arithmetic number, because the mean of its divisors is an integer number (21017971260).

Almost surely, 2^142221605323 is an apocalyptic number.

142221605323 is a deficient number, since it is larger than the sum of its proper divisors (25922164757).

142221605323 is an equidigital number, since it uses as much as digits as its factorization.

142221605323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 700599077.

The product of its (nonzero) digits is 17280, while the sum is 31.

Adding to 142221605323 its reverse (323506122241), we get a palindrome (465727727564).

The spelling of 142221605323 in words is "one hundred forty-two billion, two hundred twenty-one million, six hundred five thousand, three hundred twenty-three".