540042212123 has 2 divisors, whose sum is σ = 540042212124. Its totient is φ = 540042212122.

The previous prime is 540042212107. The next prime is 540042212233. The reversal of 540042212123 is 321212240045.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 540042212123 - 2⁴ = 540042212107 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 540042212092 and 540042212101.

It is not a weakly prime, because it can be changed into another prime (540042211123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270021106061 + 270021106062.

It is an arithmetic number, because the mean of its divisors is an integer number (270021106062).

Almost surely, 2^540042212123 is an apocalyptic number.

540042212123 is a deficient number, since it is larger than the sum of its proper divisors (1).

540042212123 is an equidigital number, since it uses as much as digits as its factorization.

540042212123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3840, while the sum is 26.

Adding to 540042212123 its reverse (321212240045), we get a palindrome (861254452168).

The spelling of 540042212123 in words is "five hundred forty billion, forty-two million, two hundred twelve thousand, one hundred twenty-three".