142541231321 has 8 divisors (see below), whose sum is σ = 150944371200. Its totient is φ = 134140131648.

The previous prime is 142541231281. The next prime is 142541231323. The reversal of 142541231321 is 123132145241.

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 a de Polignac number, because none of the positive numbers 2^k-142541231321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142541231323) 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, 365021 + ... + 646778.

It is an arithmetic number, because the mean of its divisors is an integer number (18868046400).

Almost surely, 2^142541231321 is an apocalyptic number.

It is an amenable number.

142541231321 is a deficient number, since it is larger than the sum of its proper divisors (8403139879).

142541231321 is a wasteful number, since it uses less digits than its factorization.

142541231321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1020103.

The product of its digits is 5760, while the sum is 29.

Adding to 142541231321 its reverse (123132145241), we get a palindrome (265673376562).

The spelling of 142541231321 in words is "one hundred forty-two billion, five hundred forty-one million, two hundred thirty-one thousand, three hundred twenty-one".