540142120523 has 2 divisors, whose sum is σ = 540142120524. Its totient is φ = 540142120522.

The previous prime is 540142120499. The next prime is 540142120561. The reversal of 540142120523 is 325021241045.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 540142120523 - 2¹⁰ = 540142119499 is a prime.

It is not a weakly prime, because it can be changed into another prime (540142122523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270071060261 + 270071060262.

It is an arithmetic number, because the mean of its divisors is an integer number (270071060262).

Almost surely, 2^540142120523 is an apocalyptic number.

540142120523 is a deficient number, since it is larger than the sum of its proper divisors (1).

540142120523 is an equidigital number, since it uses as much as digits as its factorization.

540142120523 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9600, while the sum is 29.

Adding to 540142120523 its reverse (325021241045), we get a palindrome (865163361568).

The spelling of 540142120523 in words is "five hundred forty billion, one hundred forty-two million, one hundred twenty thousand, five hundred twenty-three".