20120200312 has 16 divisors (see below), whose sum is σ = 38000745360. Its totient is φ = 9986668224.

The previous prime is 20120200301. The next prime is 20120200367. The reversal of 20120200312 is 21300202102.

It is a junction number, because it is equal to n+sod(n) for n = 20120200292 and 20120200301.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9177828 + ... + 9180019.

It is an arithmetic number, because the mean of its divisors is an integer number (2375046585).

Almost surely, 2^20120200312 is an apocalyptic number.

It is an amenable number.

20120200312 is a deficient number, since it is larger than the sum of its proper divisors (17880545048).

20120200312 is a wasteful number, since it uses less digits than its factorization.

20120200312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18357990 (or 18357986 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 20120200312 its reverse (21300202102), we get a palindrome (41420402414).

The spelling of 20120200312 in words is "twenty billion, one hundred twenty million, two hundred thousand, three hundred twelve".