142321204220351 has 6 divisors (see below), whose sum is σ = 154111126463640. Its totient is φ = 131373419280168.

The previous prime is 142321204220347. The next prime is 142321204220401. The reversal of 142321204220351 is 153022402123241.

142321204220351 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 142321204220351 - 2² = 142321204220347 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142321204226351) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 421068651371 + ... + 421068651708.

It is an arithmetic number, because the mean of its divisors is an integer number (25685187743940).

Almost surely, 2^{142321204220351} is an apocalyptic number.

142321204220351 is a deficient number, since it is larger than the sum of its proper divisors (11789922243289).

142321204220351 is an equidigital number, since it uses as much as digits as its factorization.

142321204220351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 842137303105 (or 842137303092 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 32.

Adding to 142321204220351 its reverse (153022402123241), we get a palindrome (295343606343592).

The spelling of 142321204220351 in words is "one hundred forty-two trillion, three hundred twenty-one billion, two hundred four million, two hundred twenty thousand, three hundred fifty-one".