5340398123 has 2 divisors, whose sum is σ = 5340398124. Its totient is φ = 5340398122.

The previous prime is 5340398113. The next prime is 5340398159. The reversal of 5340398123 is 3218930435.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5340398123 - 2¹⁰ = 5340397099 is a prime.

It is a super-2 number, since 2×5340398123² = 57039704224283846258, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (5340398113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2670199061 + 2670199062.

It is an arithmetic number, because the mean of its divisors is an integer number (2670199062).

Almost surely, 2^5340398123 is an apocalyptic number.

5340398123 is a deficient number, since it is larger than the sum of its proper divisors (1).

5340398123 is an equidigital number, since it uses as much as digits as its factorization.

5340398123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 77760, while the sum is 38.

The square root of 5340398123 is about 73078.0276348507. The cubic root of 5340398123 is about 1747.9320468664.

The spelling of 5340398123 in words is "five billion, three hundred forty million, three hundred ninety-eight thousand, one hundred twenty-three".