20323012 has 12 divisors (see below), whose sum is σ = 35642880. Its totient is φ = 10139336.

The previous prime is 20322983. The next prime is 20323013. The reversal of 20323012 is 21032302.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20322983 and 20323001.

It is not an unprimeable number, because it can be changed into a prime (20323013) 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, 3388 + ... + 7219.

It is an arithmetic number, because the mean of its divisors is an integer number (2970240).

Almost surely, 2^20323012 is an apocalyptic number.

It is an amenable number.

20323012 is a deficient number, since it is larger than the sum of its proper divisors (15319868).

20323012 is a wasteful number, since it uses less digits than its factorization.

20323012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11090 (or 11088 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 20323012 is about 4508.1051451802. The cubic root of 20323012 is about 272.8952802256.

Adding to 20323012 its reverse (21032302), we get a palindrome (41355314).

The spelling of 20323012 in words is "twenty million, three hundred twenty-three thousand, twelve".