20112323 has 16 divisors (see below), whose sum is σ = 25194240. Its totient is φ = 15597600.

The previous prime is 20112319. The next prime is 20112329. The reversal of 20112323 is 32321102.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 20112323 - 2² = 20112319 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20112298 and 20112307.

It is not an unprimeable number, because it can be changed into a prime (20112329) 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 15 ways as a sum of consecutive naturals, for example, 20228 + ... + 21198.

It is an arithmetic number, because the mean of its divisors is an integer number (1574640).

Almost surely, 2^20112323 is an apocalyptic number.

20112323 is a deficient number, since it is larger than the sum of its proper divisors (5081917).

20112323 is a wasteful number, since it uses less digits than its factorization.

20112323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1258.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 20112323 is about 4484.6764654766. The cubic root of 20112323 is about 271.9489658795.

Adding to 20112323 its reverse (32321102), we get a palindrome (52433425).

It can be divided in two parts, 2011 and 2323, that added together give a palindrome (4334).

The spelling of 20112323 in words is "twenty million, one hundred twelve thousand, three hundred twenty-three".