2131111132 has 24 divisors (see below), whose sum is σ = 3888195696. Its totient is φ = 1021133568.

The previous prime is 2131111127. The next prime is 2131111133. The reversal of 2131111132 is 2311111312.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131111133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107773 + ... + 126004.

It is an arithmetic number, because the mean of its divisors is an integer number (162008154).

Almost surely, 2^2131111132 is an apocalyptic number.

It is an amenable number.

2131111132 is a deficient number, since it is larger than the sum of its proper divisors (1757084564).

2131111132 is a wasteful number, since it uses less digits than its factorization.

2131111132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233877 (or 233875 counting only the distinct ones).

The product of its digits is 36, while the sum is 16.

The square root of 2131111132 is about 46163.9592322842. The cubic root of 2131111132 is about 1286.8720425593.

Adding to 2131111132 its reverse (2311111312), we get a palindrome (4442222444).

The spelling of 2131111132 in words is "two billion, one hundred thirty-one million, one hundred eleven thousand, one hundred thirty-two".