240123420144 has 120 divisors (see below), whose sum is σ = 712141138800. Its totient is φ = 75396142080.

The previous prime is 240123420137. The next prime is 240123420167. The reversal of 240123420144 is 441024321042.

240123420144 is a `hidden beast` number, since 2 + 401 + 234 + 20 + 1 + 4 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 530014 + ... + 872445.

It is an arithmetic number, because the mean of its divisors is an integer number (5934509490).

Almost surely, 2^240123420144 is an apocalyptic number.

240123420144 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

240123420144 is an abundant number, since it is smaller than the sum of its proper divisors (472017718656).

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

240123420144 is a wasteful number, since it uses less digits than its factorization.

240123420144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1402543 (or 1402534 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

Adding to 240123420144 its reverse (441024321042), we get a palindrome (681147741186).

The spelling of 240123420144 in words is "two hundred forty billion, one hundred twenty-three million, four hundred twenty thousand, one hundred forty-four".