2111312412311 has 4 divisors (see below), whose sum is σ = 2235507260112. Its totient is φ = 1987117564512.

The previous prime is 2111312412301. The next prime is 2111312412317. The reversal of 2111312412311 is 1132142131112.

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-2111312412311 is a prime.

It is a super-3 number, since 3×2111312412311³ (a number of 38 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111312412317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62097423875 + ... + 62097423908.

It is an arithmetic number, because the mean of its divisors is an integer number (558876815028).

Almost surely, 2^{2111312412311} is an apocalyptic number.

2111312412311 is a deficient number, since it is larger than the sum of its proper divisors (124194847801).

2111312412311 is a wasteful number, since it uses less digits than its factorization.

2111312412311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124194847800.

The product of its digits is 288, while the sum is 23.

Adding to 2111312412311 its reverse (1132142131112), we get a palindrome (3243454543423).

The spelling of 2111312412311 in words is "two trillion, one hundred eleven billion, three hundred twelve million, four hundred twelve thousand, three hundred eleven".