142120120321 has 8 divisors (see below), whose sum is σ = 145994612544. Its totient is φ = 138247386480.

The previous prime is 142120120319. The next prime is 142120120333. The reversal of 142120120321 is 123021021241.

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 142120120321 - 2¹ = 142120120319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142120120391) 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, 274915 + ... + 599848.

It is an arithmetic number, because the mean of its divisors is an integer number (18249326568).

Almost surely, 2^142120120321 is an apocalyptic number.

It is an amenable number.

142120120321 is a deficient number, since it is larger than the sum of its proper divisors (3874492223).

142120120321 is an equidigital number, since it uses as much as digits as its factorization.

142120120321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 879191.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 142120120321 its reverse (123021021241), we get a palindrome (265141141562).

The spelling of 142120120321 in words is "one hundred forty-two billion, one hundred twenty million, one hundred twenty thousand, three hundred twenty-one".