13313031213 has 4 divisors (see below), whose sum is σ = 17750708288. Its totient is φ = 8875354140.

The previous prime is 13313031197. The next prime is 13313031227. The reversal of 13313031213 is 31213031331.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 13313031213 - 2⁴ = 13313031197 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 13313031213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13313031233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2218838533 + ... + 2218838538.

It is an arithmetic number, because the mean of its divisors is an integer number (4437677072).

Almost surely, 2^13313031213 is an apocalyptic number.

It is an amenable number.

13313031213 is a deficient number, since it is larger than the sum of its proper divisors (4437677075).

13313031213 is an equidigital number, since it uses as much as digits as its factorization.

13313031213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4437677074.

The product of its (nonzero) digits is 486, while the sum is 21.

Adding to 13313031213 its reverse (31213031331), we get a palindrome (44526062544).

The spelling of 13313031213 in words is "thirteen billion, three hundred thirteen million, thirty-one thousand, two hundred thirteen".