2132121311 has 4 divisors (see below), whose sum is σ = 2146431000. Its totient is φ = 2117811624.

The previous prime is 2132121289. The next prime is 2132121361. The reversal of 2132121311 is 1131212312.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2132121311 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2132121311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2132121361) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7154621 + ... + 7154918.

It is an arithmetic number, because the mean of its divisors is an integer number (536607750).

Almost surely, 2^2132121311 is an apocalyptic number.

2132121311 is a deficient number, since it is larger than the sum of its proper divisors (14309689).

2132121311 is a wasteful number, since it uses less digits than its factorization.

2132121311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14309688.

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

The square root of 2132121311 is about 46174.8991444486. The cubic root of 2132121311 is about 1287.0753427291.

Adding to 2132121311 its reverse (1131212312), we get a palindrome (3263333623).

The spelling of 2132121311 in words is "two billion, one hundred thirty-two million, one hundred twenty-one thousand, three hundred eleven".