542320413340121 has 8 divisors (see below), whose sum is σ = 618392507519304. Its totient is φ = 471156196204800.

The previous prime is 542320413340099. The next prime is 542320413340129. The reversal of 542320413340121 is 121043314023245.

It can be written as a sum of positive squares in 4 ways, for example, as 52062877442521 + 490257535897600 = 7215461^2 + 22141760^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 542320413340121 - 2³⁴ = 542303233470937 is a prime.

It is a super-2 number, since 2×542320413340121² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (542320413340129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1226969260730 + ... + 1226969261171.

It is an arithmetic number, because the mean of its divisors is an integer number (77299063439913).

Almost surely, 2^{542320413340121} is an apocalyptic number.

It is an amenable number.

542320413340121 is a deficient number, since it is larger than the sum of its proper divisors (76072094179183).

542320413340121 is a wasteful number, since it uses less digits than its factorization.

542320413340121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2453938521931.

The product of its (nonzero) digits is 69120, while the sum is 35.

Adding to 542320413340121 its reverse (121043314023245), we get a palindrome (663363727363366).

The spelling of 542320413340121 in words is "five hundred forty-two trillion, three hundred twenty billion, four hundred thirteen million, three hundred forty thousand, one hundred twenty-one".