20012323012 has 48 divisors (see below), whose sum is σ = 38781167040. Its totient is φ = 8960336000.

The previous prime is 20012322971. The next prime is 20012323013. The reversal of 20012323012 is 21032321002.

It is not an unprimeable number, because it can be changed into a prime (20012323013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 864039 + ... + 886897.

It is an arithmetic number, because the mean of its divisors is an integer number (807940980).

Almost surely, 2^20012323012 is an apocalyptic number.

20012323012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20012323012 is a deficient number, since it is larger than the sum of its proper divisors (18768844028).

20012323012 is a wasteful number, since it uses less digits than its factorization.

20012323012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23172 (or 23170 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 20012323012 its reverse (21032321002), we get a palindrome (41044644014).

The spelling of 20012323012 in words is "twenty billion, twelve million, three hundred twenty-three thousand, twelve".