20242123 has 8 divisors (see below), whose sum is σ = 22349376. Its totient is φ = 18179400.

The previous prime is 20242111. The next prime is 20242127. The reversal of 20242123 is 32124202.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20242123 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20242097 and 20242106.

It is not an unprimeable number, because it can be changed into a prime (20242127) 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, 10173 + ... + 11998.

It is an arithmetic number, because the mean of its divisors is an integer number (2793672).

Almost surely, 2^20242123 is an apocalyptic number.

20242123 is a deficient number, since it is larger than the sum of its proper divisors (2107253).

20242123 is a wasteful number, since it uses less digits than its factorization.

20242123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22265.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 20242123 is about 4499.1246926486. The cubic root of 20242123 is about 272.5327424675.

Adding to 20242123 its reverse (32124202), we get a palindrome (52366325).

The spelling of 20242123 in words is "twenty million, two hundred forty-two thousand, one hundred twenty-three".