123114013640 has 16 divisors (see below), whose sum is σ = 277006530780. Its totient is φ = 49245605440.

The previous prime is 123114013639. The next prime is 123114013643. The reversal of 123114013640 is 46310411321.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 119233471204 + 3880542436 = 345302^2 + 62294^2 .

It is not an unprimeable number, because it can be changed into a prime (123114013643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1538925131 + ... + 1538925210.

Almost surely, 2^123114013640 is an apocalyptic number.

123114013640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123114013640 is an abundant number, since it is smaller than the sum of its proper divisors (153892517140).

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

123114013640 is a wasteful number, since it uses less digits than its factorization.

123114013640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3077850352 (or 3077850348 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

Adding to 123114013640 its reverse (46310411321), we get a palindrome (169424424961).

The spelling of 123114013640 in words is "one hundred twenty-three billion, one hundred fourteen million, thirteen thousand, six hundred forty".