20133123 has 8 divisors (see below), whose sum is σ = 26949648. Its totient is φ = 13369344.

The previous prime is 20133107. The next prime is 20133131. The reversal of 20133123 is 32133102.

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

It is not a de Polignac number, because 20133123 - 2⁴ = 20133107 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20133193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12286 + ... + 13827.

It is an arithmetic number, because the mean of its divisors is an integer number (3368706).

Almost surely, 2^20133123 is an apocalyptic number.

20133123 is a deficient number, since it is larger than the sum of its proper divisors (6816525).

20133123 is a wasteful number, since it uses less digits than its factorization.

20133123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26373.

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 20133123 is about 4486.9948740777. The cubic root of 20133123 is about 272.0426827121.

Adding to 20133123 its reverse (32133102), we get a palindrome (52266225).

The spelling of 20133123 in words is "twenty million, one hundred thirty-three thousand, one hundred twenty-three".