20431300012 has 12 divisors (see below), whose sum is σ = 35761715080. Its totient is φ = 10213667136.

The previous prime is 20431300007. The next prime is 20431300013. The reversal of 20431300012 is 21000313402.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20431300013) by changing a digit.

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, 472413 + ... + 513844.

Almost surely, 2^20431300012 is an apocalyptic number.

It is an amenable number.

20431300012 is a deficient number, since it is larger than the sum of its proper divisors (15330415068).

20431300012 is a wasteful number, since it uses less digits than its factorization.

20431300012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 991440 (or 991438 counting only the distinct ones).

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

Adding to 20431300012 its reverse (21000313402), we get a palindrome (41431613414).

The spelling of 20431300012 in words is "twenty billion, four hundred thirty-one million, three hundred thousand, twelve".