144123140520 has 48 divisors (see below), whose sum is σ = 468400207860. Its totient is φ = 38432837376.

The previous prime is 144123140507. The next prime is 144123140563. The reversal of 144123140520 is 25041321441.

144123140520 is a `hidden beast` number, since 1 + 4 + 4 + 1 + 231 + 405 + 20 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 144097678404 + 25462116 = 379602^2 + 5046^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 200170669 + ... + 200171388.

Almost surely, 2^144123140520 is an apocalyptic number.

144123140520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144123140520 is an abundant number, since it is smaller than the sum of its proper divisors (324277067340).

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

144123140520 is a wasteful number, since it uses less digits than its factorization.

144123140520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400342074 (or 400342067 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

Adding to 144123140520 its reverse (25041321441), we get a palindrome (169164461961).

The spelling of 144123140520 in words is "one hundred forty-four billion, one hundred twenty-three million, one hundred forty thousand, five hundred twenty".