20033123 has 12 divisors (see below), whose sum is σ = 23317560. Its totient is φ = 17138880.

The previous prime is 20033093. The next prime is 20033137. The reversal of 20033123 is 32133002.

It is not a de Polignac number, because 20033123 - 2⁸ = 20032867 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20033098 and 20033107.

It is not an unprimeable number, because it can be changed into a prime (20033183) 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 11 ways as a sum of consecutive naturals, for example, 2813 + ... + 6926.

It is an arithmetic number, because the mean of its divisors is an integer number (1943130).

Almost surely, 2^20033123 is an apocalyptic number.

20033123 is a deficient number, since it is larger than the sum of its proper divisors (3284437).

20033123 is a wasteful number, since it uses less digits than its factorization.

20033123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9778 (or 9767 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 14.

The square root of 20033123 is about 4475.8376869587. The cubic root of 20033123 is about 271.5915284357.

Adding to 20033123 its reverse (32133002), we get a palindrome (52166125).

The spelling of 20033123 in words is "twenty million, thirty-three thousand, one hundred twenty-three".