2131312132 has 6 divisors (see below), whose sum is σ = 3729796238. Its totient is φ = 1065656064.

The previous prime is 2131312087. The next prime is 2131312163. The reversal of 2131312132 is 2312131312.

It can be written as a sum of positive squares in only one way, i.e., 1643167296 + 488144836 = 40536^2 + 22094^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 266414013 + ... + 266414020.

Almost surely, 2^2131312132 is an apocalyptic number.

It is an amenable number.

2131312132 is a deficient number, since it is larger than the sum of its proper divisors (1598484106).

2131312132 is a wasteful number, since it uses less digits than its factorization.

2131312132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 532828037 (or 532828035 counting only the distinct ones).

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

The square root of 2131312132 is about 46166.1362039320. The cubic root of 2131312132 is about 1286.9124992558.

Adding to 2131312132 its reverse (2312131312), we get a palindrome (4443443444).

The spelling of 2131312132 in words is "two billion, one hundred thirty-one million, three hundred twelve thousand, one hundred thirty-two".