542112123 has 32 divisors (see below), whose sum is σ = 893079040. Its totient is φ = 285534720.

The previous prime is 542112121. The next prime is 542112149. The reversal of 542112123 is 321211245.

It is not a de Polignac number, because 542112123 - 2¹ = 542112121 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 542112123.

It is not an unprimeable number, because it can be changed into a prime (542112121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3598 + ... + 33123.

It is an arithmetic number, because the mean of its divisors is an integer number (27908720).

Almost surely, 2^542112123 is an apocalyptic number.

542112123 is a deficient number, since it is larger than the sum of its proper divisors (350966917).

542112123 is a wasteful number, since it uses less digits than its factorization.

542112123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36787.

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

The square root of 542112123 is about 23283.3013767378. The cubic root of 542112123 is about 815.3856044732.

Adding to 542112123 its reverse (321211245), we get a palindrome (863323368).

The spelling of 542112123 in words is "five hundred forty-two million, one hundred twelve thousand, one hundred twenty-three".