211223110313 has 4 divisors (see below), whose sum is σ = 211280652288. Its totient is φ = 211165568340.

The previous prime is 211223110309. The next prime is 211223110337. The reversal of 211223110313 is 313011322112.

It is a happy number.

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 a cyclic number.

It is not a de Polignac number, because 211223110313 - 2² = 211223110309 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211223110363) 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, 28765481 + ... + 28772822.

It is an arithmetic number, because the mean of its divisors is an integer number (52820163072).

Almost surely, 2^211223110313 is an apocalyptic number.

It is an amenable number.

211223110313 is a deficient number, since it is larger than the sum of its proper divisors (57541975).

211223110313 is an equidigital number, since it uses as much as digits as its factorization.

211223110313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57541974.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 211223110313 its reverse (313011322112), we get a palindrome (524234432425).

The spelling of 211223110313 in words is "two hundred eleven billion, two hundred twenty-three million, one hundred ten thousand, three hundred thirteen".