2311313211212 has 12 divisors (see below), whose sum is σ = 4257682231320. Its totient is φ = 1094832573696.

The previous prime is 2311313211157. The next prime is 2311313211223. The reversal of 2311313211212 is 2121123131132.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15206007893 + ... + 15206008044.

It is an arithmetic number, because the mean of its divisors is an integer number (354806852610).

Almost surely, 2^{2311313211212} is an apocalyptic number.

It is an amenable number.

2311313211212 is a deficient number, since it is larger than the sum of its proper divisors (1946369020108).

2311313211212 is a wasteful number, since it uses less digits than its factorization.

2311313211212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30412015960 (or 30412015958 counting only the distinct ones).

The product of its digits is 432, while the sum is 23.

Adding to 2311313211212 its reverse (2121123131132), we get a palindrome (4432436342344).

The spelling of 2311313211212 in words is "two trillion, three hundred eleven billion, three hundred thirteen million, two hundred eleven thousand, two hundred twelve".