540321013543 has 2 divisors, whose sum is σ = 540321013544. Its totient is φ = 540321013542.

The previous prime is 540321013439. The next prime is 540321013553. The reversal of 540321013543 is 345310123045.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 540321013543 - 2⁹ = 540321013031 is a prime.

It is a super-2 number, since 2×540321013543² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (540321013553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270160506771 + 270160506772.

It is an arithmetic number, because the mean of its divisors is an integer number (270160506772).

Almost surely, 2^540321013543 is an apocalyptic number.

540321013543 is a deficient number, since it is larger than the sum of its proper divisors (1).

540321013543 is an equidigital number, since it uses as much as digits as its factorization.

540321013543 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21600, while the sum is 31.

Adding to 540321013543 its reverse (345310123045), we get a palindrome (885631136588).

The spelling of 540321013543 in words is "five hundred forty billion, three hundred twenty-one million, thirteen thousand, five hundred forty-three".