2011321320311 has 8 divisors (see below), whose sum is σ = 2104783749600. Its totient is φ = 1918360030752.

The previous prime is 2011321320299. The next prime is 2011321320317. The reversal of 2011321320311 is 1130231231102.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2011321320311 is a prime.

It is a super-2 number, since 2×2011321320311² (a number of 25 digits) contains 22 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 (2011321320317) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125276720 + ... + 125292773.

It is an arithmetic number, because the mean of its divisors is an integer number (263097968700).

Almost surely, 2^{2011321320311} is an apocalyptic number.

2011321320311 is a deficient number, since it is larger than the sum of its proper divisors (93462429289).

2011321320311 is a wasteful number, since it uses less digits than its factorization.

2011321320311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250569865.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 2011321320311 its reverse (1130231231102), we get a palindrome (3141552551413).

The spelling of 2011321320311 in words is "two trillion, eleven billion, three hundred twenty-one million, three hundred twenty thousand, three hundred eleven".