42123063 has 4 divisors (see below), whose sum is σ = 56164088. Its totient is φ = 28082040.

The previous prime is 42123049. The next prime is 42123073. The reversal of 42123063 is 36032124.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 42123063 - 2⁶ = 42122999 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 (42123013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7020508 + ... + 7020513.

It is an arithmetic number, because the mean of its divisors is an integer number (14041022).

Almost surely, 2^42123063 is an apocalyptic number.

42123063 is a deficient number, since it is larger than the sum of its proper divisors (14041025).

42123063 is a wasteful number, since it uses less digits than its factorization.

42123063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14041024.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 42123063 is about 6490.2282702537. The cubic root of 42123063 is about 347.9418336526.

Adding to 42123063 its reverse (36032124), we get a palindrome (78155187).

The spelling of 42123063 in words is "forty-two million, one hundred twenty-three thousand, sixty-three".