2121131132 has 6 divisors (see below), whose sum is σ = 3711979488. Its totient is φ = 1060565564.

The previous prime is 2121131113. The next prime is 2121131147. The reversal of 2121131132 is 2311311212.

It is a self number, because there is not a number n which added to its sum of digits gives 2121131132.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 265141388 + ... + 265141395.

It is an arithmetic number, because the mean of its divisors is an integer number (618663248).

Almost surely, 2^2121131132 is an apocalyptic number.

It is an amenable number.

2121131132 is a deficient number, since it is larger than the sum of its proper divisors (1590848356).

2121131132 is a wasteful number, since it uses less digits than its factorization.

2121131132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 530282787 (or 530282785 counting only the distinct ones).

The product of its digits is 72, while the sum is 17.

The square root of 2121131132 is about 46055.7394034663. The cubic root of 2121131132 is about 1284.8600900426.

Adding to 2121131132 its reverse (2311311212), we get a palindrome (4432442344).

The spelling of 2121131132 in words is "two billion, one hundred twenty-one million, one hundred thirty-one thousand, one hundred thirty-two".