542123540423 has 16 divisors (see below), whose sum is σ = 606289164000. Its totient is φ = 482478498432.

The previous prime is 542123540419. The next prime is 542123540477. The reversal of 542123540423 is 324045321245.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 542123540423 - 2² = 542123540419 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542123540923) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13275428 + ... + 13316201.

It is an arithmetic number, because the mean of its divisors is an integer number (37893072750).

Almost surely, 2^542123540423 is an apocalyptic number.

542123540423 is a deficient number, since it is larger than the sum of its proper divisors (64165623577).

542123540423 is a wasteful number, since it uses less digits than its factorization.

542123540423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26591714.

The product of its (nonzero) digits is 115200, while the sum is 35.

Adding to 542123540423 its reverse (324045321245), we get a palindrome (866168861668).

The spelling of 542123540423 in words is "five hundred forty-two billion, one hundred twenty-three million, five hundred forty thousand, four hundred twenty-three".