142120321324 has 12 divisors (see below), whose sum is σ = 251707075704. Its totient is φ = 70204013984.

The previous prime is 142120321303. The next prime is 142120321339. The reversal of 142120321324 is 423123021241.

It is a super-2 number, since 2×142120321324² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 214036297 + ... + 214036960.

It is an arithmetic number, because the mean of its divisors is an integer number (20975589642).

Almost surely, 2^142120321324 is an apocalyptic number.

It is an amenable number.

142120321324 is a deficient number, since it is larger than the sum of its proper divisors (109586754380).

142120321324 is a wasteful number, since it uses less digits than its factorization.

142120321324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428073344 (or 428073342 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 142120321324 its reverse (423123021241), we get a palindrome (565243342565).

The spelling of 142120321324 in words is "one hundred forty-two billion, one hundred twenty million, three hundred twenty-one thousand, three hundred twenty-four".