2311211213 has 8 divisors (see below), whose sum is σ = 2320812000. Its totient is φ = 2301629968.

The previous prime is 2311211207. The next prime is 2311211237. The reversal of 2311211213 is 3121121132.

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 2311211213 - 2¹⁶ = 2311145677 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2311211191 and 2311211200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2311216213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 261338 + ... + 270036.

It is an arithmetic number, because the mean of its divisors is an integer number (290101500).

Almost surely, 2^2311211213 is an apocalyptic number.

It is an amenable number.

2311211213 is a deficient number, since it is larger than the sum of its proper divisors (9600787).

2311211213 is an equidigital number, since it uses as much as digits as its factorization.

2311211213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9771.

The product of its digits is 72, while the sum is 17.

The square root of 2311211213 is about 48075.0581174896. The cubic root of 2311211213 is about 1322.1474100994.

Adding to 2311211213 its reverse (3121121132), we get a palindrome (5432332345).

The spelling of 2311211213 in words is "two billion, three hundred eleven million, two hundred eleven thousand, two hundred thirteen".