13112210321 has 12 divisors (see below), whose sum is σ = 15254857332. Its totient is φ = 11237653728.

The previous prime is 13112210311. The next prime is 13112210351. The reversal of 13112210321 is 12301221131.

It can be written as a sum of positive squares in 2 ways, for example, as 5422849600 + 7689360721 = 73640^2 + 87689^2 .

It is not a de Polignac number, because 13112210321 - 2²⁶ = 13045101457 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13112210321.

It is not an unprimeable number, because it can be changed into a prime (13112210311) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 702911 + ... + 721323.

It is an arithmetic number, because the mean of its divisors is an integer number (1271238111).

Almost surely, 2^13112210321 is an apocalyptic number.

It is an amenable number.

13112210321 is a deficient number, since it is larger than the sum of its proper divisors (2142647011).

13112210321 is a wasteful number, since it uses less digits than its factorization.

13112210321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32960 (or 32953 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 13112210321 its reverse (12301221131), we get a palindrome (25413431452).

The spelling of 13112210321 in words is "thirteen billion, one hundred twelve million, two hundred ten thousand, three hundred twenty-one".