142321012402252 has 12 divisors (see below), whose sum is σ = 263712464157240. Its totient is φ = 66974594071616.

The previous prime is 142321012402249. The next prime is 142321012402259. The reversal of 142321012402252 is 252204210123241.

It is not an unprimeable number, because it can be changed into a prime (142321012402259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1046478032302 + ... + 1046478032437.

It is an arithmetic number, because the mean of its divisors is an integer number (21976038679770).

Almost surely, 2^{142321012402252} is an apocalyptic number.

It is an amenable number.

142321012402252 is a deficient number, since it is larger than the sum of its proper divisors (121391451754988).

142321012402252 is a wasteful number, since it uses less digits than its factorization.

142321012402252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2092956064760 (or 2092956064758 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 31.

Adding to 142321012402252 its reverse (252204210123241), we get a palindrome (394525222525493).

The spelling of 142321012402252 in words is "one hundred forty-two trillion, three hundred twenty-one billion, twelve million, four hundred two thousand, two hundred fifty-two".