2132405321 has 4 divisors (see below), whose sum is σ = 2244637200. Its totient is φ = 2020173444.

The previous prime is 2132405309. The next prime is 2132405357. The reversal of 2132405321 is 1235042312.

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 2132405321 - 2¹⁰ = 2132404297 is a prime.

It is a super-2 number, since 2×2132405321² = 9094304906058226082, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2132405381) 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, 56115911 + ... + 56115948.

It is an arithmetic number, because the mean of its divisors is an integer number (561159300).

Almost surely, 2^2132405321 is an apocalyptic number.

It is an amenable number.

2132405321 is a deficient number, since it is larger than the sum of its proper divisors (112231879).

2132405321 is a wasteful number, since it uses less digits than its factorization.

2132405321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112231878.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 2132405321 is about 46177.9744142161. The cubic root of 2132405321 is about 1287.1324886392.

Adding to 2132405321 its reverse (1235042312), we get a palindrome (3367447633).

The spelling of 2132405321 in words is "two billion, one hundred thirty-two million, four hundred five thousand, three hundred twenty-one".