5340440203123 has 4 divisors (see below), whose sum is σ = 5387700736008. Its totient is φ = 5293179670240.

The previous prime is 5340440203073. The next prime is 5340440203129. The reversal of 5340440203123 is 3213020440435.

It is a happy number.

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 5340440203123 - 2¹³ = 5340440194931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5340440203129) 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, 23630266273 + ... + 23630266498.

It is an arithmetic number, because the mean of its divisors is an integer number (1346925184002).

Almost surely, 2^{5340440203123} is an apocalyptic number.

5340440203123 is a deficient number, since it is larger than the sum of its proper divisors (47260532885).

5340440203123 is a wasteful number, since it uses less digits than its factorization.

5340440203123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47260532884.

The product of its (nonzero) digits is 34560, while the sum is 31.

Adding to 5340440203123 its reverse (3213020440435), we get a palindrome (8553460643558).

The spelling of 5340440203123 in words is "five trillion, three hundred forty billion, four hundred forty million, two hundred three thousand, one hundred twenty-three".