2311000331212 has 6 divisors (see below), whose sum is σ = 4044250579628. Its totient is φ = 1155500165604.

The previous prime is 2311000331203. The next prime is 2311000331243. The reversal of 2311000331212 is 2121330001132.

It is a self number, because there is not a number n which added to its sum of digits gives 2311000331212.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 288875041398 + ... + 288875041405.

Almost surely, 2^{2311000331212} is an apocalyptic number.

It is an amenable number.

2311000331212 is a deficient number, since it is larger than the sum of its proper divisors (1733250248416).

2311000331212 is a wasteful number, since it uses less digits than its factorization.

2311000331212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 577750082807 (or 577750082805 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 2311000331212 its reverse (2121330001132), we get a palindrome (4432330332344).

The spelling of 2311000331212 in words is "two trillion, three hundred eleven billion, three hundred thirty-one thousand, two hundred twelve".