2311303321211 has 4 divisors (see below), whose sum is σ = 2311464435672. Its totient is φ = 2311142206752.

The previous prime is 2311303321189. The next prime is 2311303321259. The reversal of 2311303321211 is 1121233031132.

2311303321211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2311303321211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2311303321511) 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, 80535710 + ... + 80564403.

It is an arithmetic number, because the mean of its divisors is an integer number (577866108918).

Almost surely, 2^{2311303321211} is an apocalyptic number.

2311303321211 is a deficient number, since it is larger than the sum of its proper divisors (161114461).

2311303321211 is a wasteful number, since it uses less digits than its factorization.

2311303321211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161114460.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 2311303321211 its reverse (1121233031132), we get a palindrome (3432536352343).

The spelling of 2311303321211 in words is "two trillion, three hundred eleven billion, three hundred three million, three hundred twenty-one thousand, two hundred eleven".