2131332111 has 6 divisors (see below), whose sum is σ = 3078590840. Its totient is φ = 1420888068.

The previous prime is 2131332079. The next prime is 2131332121. The reversal of 2131332111 is 1112331312.

2131332111 is a `hidden beast` number, since 21 + 313 + 321 + 11 = 666.

It is not a de Polignac number, because 2131332111 - 2⁵ = 2131332079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131332121) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 118407331 + ... + 118407348.

Almost surely, 2^2131332111 is an apocalyptic number.

2131332111 is a deficient number, since it is larger than the sum of its proper divisors (947258729).

2131332111 is a wasteful number, since it uses less digits than its factorization.

2131332111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236814685 (or 236814682 counting only the distinct ones).

The product of its digits is 108, while the sum is 18.

The square root of 2131332111 is about 46166.3525849725. The cubic root of 2131332111 is about 1286.9165204319.

Adding to 2131332111 its reverse (1112331312), we get a palindrome (3243663423).

The spelling of 2131332111 in words is "two billion, one hundred thirty-one million, three hundred thirty-two thousand, one hundred eleven".