540330454123 has 2 divisors, whose sum is σ = 540330454124. Its totient is φ = 540330454122.

The previous prime is 540330454121. The next prime is 540330454133. The reversal of 540330454123 is 321454033045.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 540330454123 - 2¹ = 540330454121 is a prime.

Together with 540330454121, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (540330454121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270165227061 + 270165227062.

It is an arithmetic number, because the mean of its divisors is an integer number (270165227062).

Almost surely, 2^540330454123 is an apocalyptic number.

540330454123 is a deficient number, since it is larger than the sum of its proper divisors (1).

540330454123 is an equidigital number, since it uses as much as digits as its factorization.

540330454123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 86400, while the sum is 34.

Adding to 540330454123 its reverse (321454033045), we get a palindrome (861784487168).

The spelling of 540330454123 in words is "five hundred forty billion, three hundred thirty million, four hundred fifty-four thousand, one hundred twenty-three".