142141232321 has 8 divisors (see below), whose sum is σ = 155080570464. Its totient is φ = 129204795520.

The previous prime is 142141232281. The next prime is 142141232323. The reversal of 142141232321 is 123232141241.

It is a happy number.

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 142141232321 - 2¹⁸ = 142140970177 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 (142141232323) 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 7 ways as a sum of consecutive naturals, for example, 622256 + ... + 819441.

It is an arithmetic number, because the mean of its divisors is an integer number (19385071308).

Almost surely, 2^142141232321 is an apocalyptic number.

142141232321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

142141232321 is a deficient number, since it is larger than the sum of its proper divisors (12939338143).

142141232321 is a wasteful number, since it uses less digits than its factorization.

142141232321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1450671.

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

Adding to 142141232321 its reverse (123232141241), we get a palindrome (265373373562).

The spelling of 142141232321 in words is "one hundred forty-two billion, one hundred forty-one million, two hundred thirty-two thousand, three hundred twenty-one".