20323112 has 8 divisors (see below), whose sum is σ = 38105850. Its totient is φ = 10161552.

The previous prime is 20323091. The next prime is 20323139. The reversal of 20323112 is 21132302.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 20124196 + 198916 = 4486^2 + 446^2 .

It is a tau number, because it is divible by the number of its divisors (8).

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 as a sum of consecutive naturals, namely, 1270187 + ... + 1270202.

Almost surely, 2^20323112 is an apocalyptic number.

It is an amenable number.

20323112 is a deficient number, since it is larger than the sum of its proper divisors (17782738).

20323112 is a wasteful number, since it uses less digits than its factorization.

20323112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2540395 (or 2540391 counting only the distinct ones).

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

The square root of 20323112 is about 4508.1162363009. The cubic root of 20323112 is about 272.8957278214.

Adding to 20323112 its reverse (21132302), we get a palindrome (41455414).

The spelling of 20323112 in words is "twenty million, three hundred twenty-three thousand, one hundred twelve".