142321023215252 has 48 divisors (see below), whose sum is σ = 291279800942592. Its totient is φ = 59572525269600.

The previous prime is 142321023215227. The next prime is 142321023215257. The reversal of 142321023215252 is 252512320123241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142321023215257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15660377 + ... + 23019327.

It is an arithmetic number, because the mean of its divisors is an integer number (6068329186304).

Almost surely, 2^{142321023215252} is an apocalyptic number.

It is an amenable number.

142321023215252 is an abundant number, since it is smaller than the sum of its proper divisors (148958777727340).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142321023215252 is a wasteful number, since it uses less digits than its factorization.

142321023215252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7375068 (or 7375066 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 35.

Adding to 142321023215252 its reverse (252512320123241), we get a palindrome (394833343338493).

The spelling of 142321023215252 in words is "one hundred forty-two trillion, three hundred twenty-one billion, twenty-three million, two hundred fifteen thousand, two hundred fifty-two".