20113200312 has 32 divisors (see below), whose sum is σ = 50678937600. Its totient is φ = 6651608544.

The previous prime is 20113200269. The next prime is 20113200323. The reversal of 20113200312 is 21300231102.

It is a junction number, because it is equal to n+sod(n) for n = 20113200291 and 20113200300.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3296362 + ... + 3302457.

It is an arithmetic number, because the mean of its divisors is an integer number (1583716800).

Almost surely, 2^20113200312 is an apocalyptic number.

It is an amenable number.

20113200312 is an abundant number, since it is smaller than the sum of its proper divisors (30565737288).

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

20113200312 is a wasteful number, since it uses less digits than its factorization.

20113200312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6598955 (or 6598951 counting only the distinct ones).

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

Adding to 20113200312 its reverse (21300231102), we get a palindrome (41413431414).

The spelling of 20113200312 in words is "twenty billion, one hundred thirteen million, two hundred thousand, three hundred twelve".