20130203112 has 16 divisors (see below), whose sum is σ = 50325507840. Its totient is φ = 6710067696.

The previous prime is 20130202987. The next prime is 20130203141. The reversal of 20130203112 is 21130203102.

It is a junction number, because it is equal to n+sod(n) for n = 20130203091 and 20130203100.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 419379208 + ... + 419379255.

It is an arithmetic number, because the mean of its divisors is an integer number (3145344240).

Almost surely, 2^20130203112 is an apocalyptic number.

It is an amenable number.

20130203112 is an abundant number, since it is smaller than the sum of its proper divisors (30195304728).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20130203112 is a wasteful number, since it uses less digits than its factorization.

20130203112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 838758472 (or 838758468 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 20130203112 its reverse (21130203102), we get a palindrome (41260406214).

The spelling of 20130203112 in words is "twenty billion, one hundred thirty million, two hundred three thousand, one hundred twelve".