142131233220321 has 8 divisors (see below), whose sum is σ = 189508645736064. Its totient is φ = 94753988092400.

The previous prime is 142131233220283. The next prime is 142131233220329. The reversal of 142131233220321 is 123022332131241.

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

It is a cyclic number.

It is not a de Polignac number, because 142131233220321 - 2⁹ = 142131233219809 is a prime.

It is not an unprimeable number, because it can be changed into a prime (142131233220329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39852105 + ... + 43271846.

It is an arithmetic number, because the mean of its divisors is an integer number (23688580717008).

Almost surely, 2^{142131233220321} is an apocalyptic number.

It is an amenable number.

142131233220321 is a deficient number, since it is larger than the sum of its proper divisors (47377412515743).

142131233220321 is an equidigital number, since it uses as much as digits as its factorization.

142131233220321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83693911.

The product of its (nonzero) digits is 10368, while the sum is 30.

Adding to 142131233220321 its reverse (123022332131241), we get a palindrome (265153565351562).

The spelling of 142131233220321 in words is "one hundred forty-two trillion, one hundred thirty-one billion, two hundred thirty-three million, two hundred twenty thousand, three hundred twenty-one".