13210231312 has 10 divisors (see below), whose sum is σ = 25594823198. Its totient is φ = 6605115648.

The previous prime is 13210231303. The next prime is 13210231337. The reversal of 13210231312 is 21313201231.

It can be written as a sum of positive squares in only one way, i.e., 12926780416 + 283450896 = 113696^2 + 16836^2 .

It is a super-2 number, since 2×13210231312² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13210231312.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 412819713 + ... + 412819744.

Almost surely, 2^13210231312 is an apocalyptic number.

It is an amenable number.

13210231312 is a deficient number, since it is larger than the sum of its proper divisors (12384591886).

13210231312 is an equidigital number, since it uses as much as digits as its factorization.

13210231312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 825639465 (or 825639459 counting only the distinct ones).

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

Adding to 13210231312 its reverse (21313201231), we get a palindrome (34523432543).

The spelling of 13210231312 in words is "thirteen billion, two hundred ten million, two hundred thirty-one thousand, three hundred twelve".