13203331213 has 8 divisors (see below), whose sum is σ = 13249159416. Its totient is φ = 13157568000.

The previous prime is 13203331187. The next prime is 13203331247. The reversal of 13203331213 is 31213330231.

It can be written as a sum of positive squares in 4 ways, for example, as 8142716169 + 5060615044 = 90237^2 + 71138^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13203331213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13203331313) 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, 409945 + ... + 440977.

It is an arithmetic number, because the mean of its divisors is an integer number (1656144927).

Almost surely, 2^13203331213 is an apocalyptic number.

It is an amenable number.

13203331213 is a deficient number, since it is larger than the sum of its proper divisors (45828203).

13203331213 is a wasteful number, since it uses less digits than its factorization.

13203331213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32495.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 13203331213 its reverse (31213330231), we get a palindrome (44416661444).

The spelling of 13203331213 in words is "thirteen billion, two hundred three million, three hundred thirty-one thousand, two hundred thirteen".