13321203112 has 48 divisors (see below), whose sum is σ = 30318464160. Its totient is φ = 5460862176.

The previous prime is 13321203053. The next prime is 13321203131. The reversal of 13321203112 is 21130212331.

It is a super-3 number, since 3×13321203112³ (a number of 31 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13321203112.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 729738 + ... + 747769.

It is an arithmetic number, because the mean of its divisors is an integer number (631634670).

Almost surely, 2^13321203112 is an apocalyptic number.

It is an amenable number.

13321203112 is an abundant number, since it is smaller than the sum of its proper divisors (16997261048).

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

13321203112 is a wasteful number, since it uses less digits than its factorization.

13321203112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1477550 (or 1477539 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 13321203112 its reverse (21130212331), we get a palindrome (34451415443).

The spelling of 13321203112 in words is "thirteen billion, three hundred twenty-one million, two hundred three thousand, one hundred twelve".