120332661 has 4 divisors (see below), whose sum is σ = 160443552. Its totient is φ = 80221772.

The previous prime is 120332659. The next prime is 120332677. The reversal of 120332661 is 166233021.

It is a happy number.

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 120332661 - 2¹ = 120332659 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120332651) 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, 20055441 + ... + 20055446.

It is an arithmetic number, because the mean of its divisors is an integer number (40110888).

Almost surely, 2^120332661 is an apocalyptic number.

It is an amenable number.

120332661 is a deficient number, since it is larger than the sum of its proper divisors (40110891).

120332661 is an equidigital number, since it uses as much as digits as its factorization.

120332661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40110890.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 120332661 is about 10969.6244694155. The cubic root of 120332661 is about 493.6977791056.

Adding to 120332661 its reverse (166233021), we get a palindrome (286565682).

The spelling of 120332661 in words is "one hundred twenty million, three hundred thirty-two thousand, six hundred sixty-one".