13012213312 has 28 divisors (see below), whose sum is σ = 29509841920. Its totient is φ = 5576662656.

The previous prime is 13012213301. The next prime is 13012213339. The reversal of 13012213312 is 21331221031.

It is a tau number, because it is divible by the number of its divisors (28).

It is a self number, because there is not a number n which added to its sum of digits gives 13012213312.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14522112 + ... + 14523007.

Almost surely, 2^13012213312 is an apocalyptic number.

It is an amenable number.

13012213312 is an abundant number, since it is smaller than the sum of its proper divisors (16497628608).

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

13012213312 is an equidigital number, since it uses as much as digits as its factorization.

13012213312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29045138 (or 29045128 counting only the distinct ones).

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

Adding to 13012213312 its reverse (21331221031), we get a palindrome (34343434343).

The spelling of 13012213312 in words is "thirteen billion, twelve million, two hundred thirteen thousand, three hundred twelve".