212013302313 has 4 divisors (see below), whose sum is σ = 282684403088. Its totient is φ = 141342201540.

The previous prime is 212013302309. The next prime is 212013302329. The reversal of 212013302313 is 313203310212.

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 212013302313 - 2² = 212013302309 is a prime.

It is a super-2 number, since 2×212013302313² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 212013302313.

It is not an unprimeable number, because it can be changed into a prime (212013302383) 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, 35335550383 + ... + 35335550388.

It is an arithmetic number, because the mean of its divisors is an integer number (70671100772).

Almost surely, 2^212013302313 is an apocalyptic number.

It is an amenable number.

212013302313 is a deficient number, since it is larger than the sum of its proper divisors (70671100775).

212013302313 is an equidigital number, since it uses as much as digits as its factorization.

212013302313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70671100774.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 212013302313 its reverse (313203310212), we get a palindrome (525216612525).

The spelling of 212013302313 in words is "two hundred twelve billion, thirteen million, three hundred two thousand, three hundred thirteen".