2132012321 has 4 divisors (see below), whose sum is σ = 2200786944. Its totient is φ = 2063237700.

The previous prime is 2132012317. The next prime is 2132012359. The reversal of 2132012321 is 1232102312.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2132012321 - 2² = 2132012317 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 2132012321.

It is not an unprimeable number, because it can be changed into a prime (2132012621) 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, 34387265 + ... + 34387326.

It is an arithmetic number, because the mean of its divisors is an integer number (550196736).

Almost surely, 2^2132012321 is an apocalyptic number.

It is an amenable number.

2132012321 is a deficient number, since it is larger than the sum of its proper divisors (68774623).

2132012321 is an equidigital number, since it uses as much as digits as its factorization.

2132012321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68774622.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 2132012321 is about 46173.7189427059. The cubic root of 2132012321 is about 1287.0534114048.

Adding to 2132012321 its reverse (1232102312), we get a palindrome (3364114633).

The spelling of 2132012321 in words is "two billion, one hundred thirty-two million, twelve thousand, three hundred twenty-one".