542241141421 has 4 divisors (see below), whose sum is σ = 619704161632. Its totient is φ = 464778121212.

The previous prime is 542241141361. The next prime is 542241141437. The reversal of 542241141421 is 124141142245.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 124141142245 = 5 ⋅24828228449.

It is a cyclic number.

It is not a de Polignac number, because 542241141421 - 2²⁷ = 542106923693 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 (542241141451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38731510095 + ... + 38731510108.

It is an arithmetic number, because the mean of its divisors is an integer number (154926040408).

Almost surely, 2^542241141421 is an apocalyptic number.

It is an amenable number.

542241141421 is a deficient number, since it is larger than the sum of its proper divisors (77463020211).

542241141421 is an equidigital number, since it uses as much as digits as its factorization.

542241141421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77463020210.

The product of its digits is 10240, while the sum is 31.

Adding to 542241141421 its reverse (124141142245), we get a palindrome (666382283666).

The spelling of 542241141421 in words is "five hundred forty-two billion, two hundred forty-one million, one hundred forty-one thousand, four hundred twenty-one".