13021203213 has 6 divisors (see below), whose sum is σ = 18808404654. Its totient is φ = 8680802136.

The previous prime is 13021203163. The next prime is 13021203257. The reversal of 13021203213 is 31230212031.

13021203213 is a `hidden beast` number, since 130 + 212 + 0 + 321 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 11715248169 + 1305955044 = 108237^2 + 36138^2 .

It is not a de Polignac number, because 13021203213 - 2⁶ = 13021203149 is a prime.

It is a super-2 number, since 2×13021203213² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13021203263) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 723400170 + ... + 723400187.

It is an arithmetic number, because the mean of its divisors is an integer number (3134734109).

Almost surely, 2^13021203213 is an apocalyptic number.

It is an amenable number.

13021203213 is a deficient number, since it is larger than the sum of its proper divisors (5787201441).

13021203213 is a wasteful number, since it uses less digits than its factorization.

13021203213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1446800363 (or 1446800360 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 13021203213 its reverse (31230212031), we get a palindrome (44251415244).

The spelling of 13021203213 in words is "thirteen billion, twenty-one million, two hundred three thousand, two hundred thirteen".