132120321 has 4 divisors (see below), whose sum is σ = 176160432. Its totient is φ = 88080212.

The previous prime is 132120301. The next prime is 132120323. The reversal of 132120321 is 123021231.

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 132120321 - 2⁷ = 132120193 is a prime.

It is a super-2 number, since 2×132120321² = 34911558442286082, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 132120321.

It is not an unprimeable number, because it can be changed into a prime (132120323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22020051 + ... + 22020056.

It is an arithmetic number, because the mean of its divisors is an integer number (44040108).

Almost surely, 2^132120321 is an apocalyptic number.

It is an amenable number.

132120321 is a deficient number, since it is larger than the sum of its proper divisors (44040111).

132120321 is an equidigital number, since it uses as much as digits as its factorization.

132120321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44040110.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 132120321 is about 11494.3603997787. The cubic root of 132120321 is about 509.3189949391.

Adding to 132120321 its reverse (123021231), we get a palindrome (255141552).

The spelling of 132120321 in words is "one hundred thirty-two million, one hundred twenty thousand, three hundred twenty-one".