5120140123 has 16 divisors (see below), whose sum is σ = 5887918080. Its totient is φ = 4361497056.

The previous prime is 5120140099. The next prime is 5120140187. The reversal of 5120140123 is 3210410215.

It is a de Polignac number, because none of the positive numbers 2^k-5120140123 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5120140123.

It is not an unprimeable number, because it can be changed into a prime (5120140723) 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 15 ways as a sum of consecutive naturals, for example, 1762290 + ... + 1765192.

It is an arithmetic number, because the mean of its divisors is an integer number (367994880).

Almost surely, 2^5120140123 is an apocalyptic number.

5120140123 is a deficient number, since it is larger than the sum of its proper divisors (767777957).

5120140123 is a wasteful number, since it uses less digits than its factorization.

5120140123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4386.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 5120140123 is about 71555.1544125229. The cubic root of 5120140123 is about 1723.5634751035.

Adding to 5120140123 its reverse (3210410215), we get a palindrome (8330550338).

The spelling of 5120140123 in words is "five billion, one hundred twenty million, one hundred forty thousand, one hundred twenty-three".