542321121 has 8 divisors (see below), whose sum is σ = 723216384. Its totient is φ = 361486640.

The previous prime is 542321119. The next prime is 542321137. The reversal of 542321121 is 121123245.

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 542321121 - 2¹ = 542321119 is a prime.

It is a super-2 number, since 2×542321121² = 588224396565393282, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (542323121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13216 + ... + 35486.

It is an arithmetic number, because the mean of its divisors is an integer number (90402048).

Almost surely, 2^542321121 is an apocalyptic number.

It is an amenable number.

542321121 is a deficient number, since it is larger than the sum of its proper divisors (180895263).

542321121 is a wasteful number, since it uses less digits than its factorization.

542321121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30391.

The product of its digits is 480, while the sum is 21.

The square root of 542321121 is about 23287.7890964342. The cubic root of 542321121 is about 815.4903749677.

Adding to 542321121 its reverse (121123245), we get a palindrome (663444366).

The spelling of 542321121 in words is "five hundred forty-two million, three hundred twenty-one thousand, one hundred twenty-one".