2011310311331 has 4 divisors (see below), whose sum is σ = 2025991408632. Its totient is φ = 1996629214032.

The previous prime is 2011310311289. The next prime is 2011310311393. The reversal of 2011310311331 is 1331130131102.

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-2011310311331 is a prime.

It is a super-2 number, since 2×2011310311331² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2011310314331) 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, 7340548445 + ... + 7340548718.

It is an arithmetic number, because the mean of its divisors is an integer number (506497852158).

Almost surely, 2^{2011310311331} is an apocalyptic number.

2011310311331 is a deficient number, since it is larger than the sum of its proper divisors (14681097301).

2011310311331 is a wasteful number, since it uses less digits than its factorization.

2011310311331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14681097300.

The product of its (nonzero) digits is 162, while the sum is 20.

Adding to 2011310311331 its reverse (1331130131102), we get a palindrome (3342440442433).

The spelling of 2011310311331 in words is "two trillion, eleven billion, three hundred ten million, three hundred eleven thousand, three hundred thirty-one".