132130021 has 4 divisors (see below), whose sum is σ = 132475392. Its totient is φ = 131784652.

The previous prime is 132129989. The next prime is 132130027. The reversal of 132130021 is 120031231.

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, and also an emirpimes, since its reverse is a distinct semiprime: 120031231 = 41 ⋅2927591.

It is a cyclic number.

It is not a de Polignac number, because 132130021 - 2⁵ = 132129989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 132129983 and 132130010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (132130027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 172111 + ... + 172876.

It is an arithmetic number, because the mean of its divisors is an integer number (33118848).

Almost surely, 2^132130021 is an apocalyptic number.

It is an amenable number.

132130021 is a deficient number, since it is larger than the sum of its proper divisors (345371).

132130021 is an equidigital number, since it uses as much as digits as its factorization.

132130021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345370.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 132130021 is about 11494.7823380871. The cubic root of 132130021 is about 509.3314590155.

Adding to 132130021 its reverse (120031231), we get a palindrome (252161252).

The spelling of 132130021 in words is "one hundred thirty-two million, one hundred thirty thousand, twenty-one".