142520041321 has 8 divisors (see below), whose sum is σ = 164402291520. Its totient is φ = 121018352208.

The previous prime is 142520041319. The next prime is 142520041327. The reversal of 142520041321 is 123140025241.

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 142520041321 - 2¹ = 142520041319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142520041327) 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, 95139466 + ... + 95140963.

It is an arithmetic number, because the mean of its divisors is an integer number (20550286440).

Almost surely, 2^142520041321 is an apocalyptic number.

It is an amenable number.

142520041321 is a deficient number, since it is larger than the sum of its proper divisors (21882250199).

142520041321 is a wasteful number, since it uses less digits than its factorization.

142520041321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190280543.

The product of its (nonzero) digits is 1920, while the sum is 25.

Adding to 142520041321 its reverse (123140025241), we get a palindrome (265660066562).

It can be divided in two parts, 1425200 and 41321, that added together give a square (1466521 = 1211²).

The spelling of 142520041321 in words is "one hundred forty-two billion, five hundred twenty million, forty-one thousand, three hundred twenty-one".