142321413612401 has 4 divisors (see below), whose sum is σ = 150693261471972. Its totient is φ = 133949565752832.

The previous prime is 142321413612317. The next prime is 142321413612403. The reversal of 142321413612401 is 104216314123241.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 42655933384801 + 99665480227600 = 6531151^2 + 9983260^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142321413612401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142321413612403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4185923929760 + ... + 4185923929793.

It is an arithmetic number, because the mean of its divisors is an integer number (37673315367993).

Almost surely, 2^{142321413612401} is an apocalyptic number.

It is an amenable number.

142321413612401 is a deficient number, since it is larger than the sum of its proper divisors (8371847859571).

142321413612401 is an equidigital number, since it uses as much as digits as its factorization.

142321413612401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8371847859570.

The product of its (nonzero) digits is 27648, while the sum is 35.

Adding to 142321413612401 its reverse (104216314123241), we get a palindrome (246537727735642).

The spelling of 142321413612401 in words is "one hundred forty-two trillion, three hundred twenty-one billion, four hundred thirteen million, six hundred twelve thousand, four hundred one".