542215102423 has 4 divisors (see below), whose sum is σ = 545541575608. Its totient is φ = 538888629240.

The previous prime is 542215102421. The next prime is 542215102453. The reversal of 542215102423 is 324201512245.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 542215102423 - 2¹ = 542215102421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542215102421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1663236348 + ... + 1663236673.

It is an arithmetic number, because the mean of its divisors is an integer number (136385393902).

Almost surely, 2^542215102423 is an apocalyptic number.

542215102423 is a deficient number, since it is larger than the sum of its proper divisors (3326473185).

542215102423 is a wasteful number, since it uses less digits than its factorization.

542215102423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3326473184.

The product of its (nonzero) digits is 19200, while the sum is 31.

Adding to 542215102423 its reverse (324201512245), we get a palindrome (866416614668).

The spelling of 542215102423 in words is "five hundred forty-two billion, two hundred fifteen million, one hundred two thousand, four hundred twenty-three".