542321123 has 8 divisors (see below), whose sum is σ = 571084800. Its totient is φ = 513579528.

The previous prime is 542321119. The next prime is 542321137. The reversal of 542321123 is 321123245.

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 542321123 - 2² = 542321119 is a prime.

It is a super-2 number, since 2×542321123² = 588224400903962258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (542321113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75590 + ... + 82452.

It is an arithmetic number, because the mean of its divisors is an integer number (71385600).

Almost surely, 2^542321123 is an apocalyptic number.

542321123 is a deficient number, since it is larger than the sum of its proper divisors (28763677).

542321123 is a wasteful number, since it uses less digits than its factorization.

542321123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11041.

The product of its digits is 1440, while the sum is 23.

The square root of 542321123 is about 23287.7891393752. The cubic root of 542321123 is about 815.4903759702.

Adding to 542321123 its reverse (321123245), we get a palindrome (863444368).

It can be divided in two parts, 54232 and 1123, that added together give a palindrome (55355).

The spelling of 542321123 in words is "five hundred forty-two million, three hundred twenty-one thousand, one hundred twenty-three".