13021313212 has 24 divisors (see below), whose sum is σ = 23009540400. Its totient is φ = 6447208320.

The previous prime is 13021313209. The next prime is 13021313213. The reversal of 13021313212 is 21231312031.

It is a self number, because there is not a number n which added to its sum of digits gives 13021313212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13021313213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1471762 + ... + 1480582.

It is an arithmetic number, because the mean of its divisors is an integer number (958730850).

Almost surely, 2^13021313212 is an apocalyptic number.

It is an amenable number.

13021313212 is a deficient number, since it is larger than the sum of its proper divisors (9988227188).

13021313212 is a wasteful number, since it uses less digits than its factorization.

13021313212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12381 (or 12379 counting only the distinct ones).

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

Adding to 13021313212 its reverse (21231312031), we get a palindrome (34252625243).

The spelling of 13021313212 in words is "thirteen billion, twenty-one million, three hundred thirteen thousand, two hundred twelve".