20123330 has 8 divisors (see below), whose sum is σ = 36222012. Its totient is φ = 8049328.

The previous prime is 20123293. The next prime is 20123339. The reversal of 20123330 is 3332102.

It can be written as a sum of positive squares in 2 ways, for example, as 19704721 + 418609 = 4439^2 + 647^2 .

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

It is not an unprimeable number, because it can be changed into a prime (20123339) 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 3 ways as a sum of consecutive naturals, for example, 1006157 + ... + 1006176.

Almost surely, 2^20123330 is an apocalyptic number.

20123330 is a deficient number, since it is larger than the sum of its proper divisors (16098682).

20123330 is a wasteful number, since it uses less digits than its factorization.

20123330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2012340.

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

The square root of 20123330 is about 4485.9034764471. The cubic root of 20123330 is about 271.9985672502.

Adding to 20123330 its reverse (3332102), we get a palindrome (23455432).

The spelling of 20123330 in words is "twenty million, one hundred twenty-three thousand, three hundred thirty".