2131322311 has 8 divisors (see below), whose sum is σ = 2196707184. Its totient is φ = 2066575680.

The previous prime is 2131322309. The next prime is 2131322339. The reversal of 2131322311 is 1132231312.

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

It is a cyclic number.

It is not a de Polignac number, because 2131322311 - 2¹ = 2131322309 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131322911) 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, 152776 + ... + 166141.

It is an arithmetic number, because the mean of its divisors is an integer number (274588398).

Almost surely, 2^2131322311 is an apocalyptic number.

2131322311 is a deficient number, since it is larger than the sum of its proper divisors (65384873).

2131322311 is a wasteful number, since it uses less digits than its factorization.

2131322311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319121.

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

The square root of 2131322311 is about 46166.2464469443. The cubic root of 2131322311 is about 1286.9145479877.

Adding to 2131322311 its reverse (1132231312), we get a palindrome (3263553623).

Subtracting from 2131322311 its reverse (1132231312), we obtain a palindrome (999090999).

The spelling of 2131322311 in words is "two billion, one hundred thirty-one million, three hundred twenty-two thousand, three hundred eleven".