142102212230321 has 4 divisors (see below), whose sum is σ = 162402528263232. Its totient is φ = 121801896197412.

The previous prime is 142102212230309. The next prime is 142102212230347. The reversal of 142102212230321 is 123032212201241.

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 a cyclic number.

It is not a de Polignac number, because 142102212230321 - 2⁴² = 137704165719217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142102212230371) 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, 10150158016445 + ... + 10150158016458.

It is an arithmetic number, because the mean of its divisors is an integer number (40600632065808).

Almost surely, 2^{142102212230321} is an apocalyptic number.

It is an amenable number.

142102212230321 is a deficient number, since it is larger than the sum of its proper divisors (20300316032911).

142102212230321 is an equidigital number, since it uses as much as digits as its factorization.

142102212230321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20300316032910.

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 142102212230321 its reverse (123032212201241), we get a palindrome (265134424431562).

The spelling of 142102212230321 in words is "one hundred forty-two trillion, one hundred two billion, two hundred twelve million, two hundred thirty thousand, three hundred twenty-one".