20123192 has 16 divisors (see below), whose sum is σ = 37791600. Its totient is φ = 10045440.

The previous prime is 20123179. The next prime is 20123231. The reversal of 20123192 is 29132102.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 4517 + ... + 7787.

It is an arithmetic number, because the mean of its divisors is an integer number (2361975).

Almost surely, 2^20123192 is an apocalyptic number.

It is an amenable number.

20123192 is a deficient number, since it is larger than the sum of its proper divisors (17668408).

20123192 is a wasteful number, since it uses less digits than its factorization.

20123192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4046 (or 4042 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 20123192 is about 4485.8880949038. Note that the first 3 decimals coincide. The cubic root of 20123192 is about 271.9979454862.

Adding to 20123192 its reverse (29132102), we get a palindrome (49255294).

The spelling of 20123192 in words is "twenty million, one hundred twenty-three thousand, one hundred ninety-two".