211302212313 has 4 divisors (see below), whose sum is σ = 281736283088. Its totient is φ = 140868141540.

The previous prime is 211302212309. The next prime is 211302212417. The reversal of 211302212313 is 313212203112.

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 211302212313 - 2² = 211302212309 is a prime.

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 211302212313.

It is not an unprimeable number, because it can be changed into a prime (211302412313) 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, 35217035383 + ... + 35217035388.

It is an arithmetic number, because the mean of its divisors is an integer number (70434070772).

Almost surely, 2^211302212313 is an apocalyptic number.

It is an amenable number.

211302212313 is a deficient number, since it is larger than the sum of its proper divisors (70434070775).

211302212313 is an equidigital number, since it uses as much as digits as its factorization.

211302212313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70434070774.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 211302212313 its reverse (313212203112), we get a palindrome (524514415425).

The spelling of 211302212313 in words is "two hundred eleven billion, three hundred two million, two hundred twelve thousand, three hundred thirteen".