142320144044 has 24 divisors (see below), whose sum is σ = 268690175040. Its totient is φ = 65570765184.

The previous prime is 142320144019. The next prime is 142320144091. The reversal of 142320144044 is 440441023241.

It is a junction number, because it is equal to n+sod(n) for n = 142320143998 and 142320144016.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2375444 + ... + 2434619.

It is an arithmetic number, because the mean of its divisors is an integer number (11195423960).

Almost surely, 2^142320144044 is an apocalyptic number.

It is an amenable number.

142320144044 is a deficient number, since it is larger than the sum of its proper divisors (126370030996).

142320144044 is a wasteful number, since it uses less digits than its factorization.

142320144044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4810649 (or 4810647 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 29.

Adding to 142320144044 its reverse (440441023241), we get a palindrome (582761167285).

The spelling of 142320144044 in words is "one hundred forty-two billion, three hundred twenty million, one hundred forty-four thousand, forty-four".