123140560144 has 60 divisors (see below), whose sum is σ = 277594434828. Its totient is φ = 52763692800.

The previous prime is 123140560141. The next prime is 123140560187. The reversal of 123140560144 is 441065041321.

It can be written as a sum of positive squares in 2 ways, for example, as 1813737744 + 121326822400 = 42588^2 + 348320^2 .

It is not an unprimeable number, because it can be changed into a prime (123140560141) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4675974 + ... + 4702234.

Almost surely, 2^123140560144 is an apocalyptic number.

123140560144 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

123140560144 is an abundant number, since it is smaller than the sum of its proper divisors (154453874684).

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

123140560144 is a wasteful number, since it uses less digits than its factorization.

123140560144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32264 (or 32251 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

The spelling of 123140560144 in words is "one hundred twenty-three billion, one hundred forty million, five hundred sixty thousand, one hundred forty-four".