211313212321 has 8 divisors (see below), whose sum is σ = 212119119488. Its totient is φ = 210507498000.

The previous prime is 211313212283. The next prime is 211313212343. The reversal of 211313212321 is 123212313112.

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

It is a cyclic number.

It is not a de Polignac number, because 211313212321 - 2⁷ = 211313212193 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211313212292 and 211313212301.

It is not an unprimeable number, because it can be changed into a prime (211313212421) 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, 2379406 + ... + 2466616.

It is an arithmetic number, because the mean of its divisors is an integer number (26514889936).

Almost surely, 2^211313212321 is an apocalyptic number.

It is an amenable number.

211313212321 is a deficient number, since it is larger than the sum of its proper divisors (805907167).

211313212321 is an equidigital number, since it uses as much as digits as its factorization.

211313212321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96423.

The product of its digits is 432, while the sum is 22.

Adding to 211313212321 its reverse (123212313112), we get a palindrome (334525525433).

The spelling of 211313212321 in words is "two hundred eleven billion, three hundred thirteen million, two hundred twelve thousand, three hundred twenty-one".