5140423123 has 4 divisors (see below), whose sum is σ = 5607734328. Its totient is φ = 4673111920.

The previous prime is 5140423109. The next prime is 5140423187. The reversal of 5140423123 is 3213240415.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 5140423123 - 2¹³ = 5140414931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5140423103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 233655586 + ... + 233655607.

It is an arithmetic number, because the mean of its divisors is an integer number (1401933582).

Almost surely, 2^5140423123 is an apocalyptic number.

5140423123 is a deficient number, since it is larger than the sum of its proper divisors (467311205).

5140423123 is a wasteful number, since it uses less digits than its factorization.

5140423123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 467311204.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 5140423123 is about 71696.7441589923. The cubic root of 5140423123 is about 1725.8363931639.

Adding to 5140423123 its reverse (3213240415), we get a palindrome (8353663538).

The spelling of 5140423123 in words is "five billion, one hundred forty million, four hundred twenty-three thousand, one hundred twenty-three".