142440203321 has 16 divisors (see below), whose sum is σ = 158725647360. Its totient is φ = 126918200640.

The previous prime is 142440203303. The next prime is 142440203363. The reversal of 142440203321 is 123302044241.

It is a cyclic number.

It is not a de Polignac number, because 142440203321 - 2¹⁰ = 142440202297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142440203821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1565936 + ... + 1654398.

It is an arithmetic number, because the mean of its divisors is an integer number (9920352960).

Almost surely, 2^142440203321 is an apocalyptic number.

It is an amenable number.

142440203321 is a deficient number, since it is larger than the sum of its proper divisors (16285444039).

142440203321 is a wasteful number, since it uses less digits than its factorization.

142440203321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92776.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 142440203321 its reverse (123302044241), we get a palindrome (265742247562).

The spelling of 142440203321 in words is "one hundred forty-two billion, four hundred forty million, two hundred three thousand, three hundred twenty-one".