120321321 has 8 divisors (see below), whose sum is σ = 161008704. Its totient is φ = 79924080.

The previous prime is 120321307. The next prime is 120321337. The reversal of 120321321 is 123123021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 120321321 - 2¹¹ = 120319273 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 120321321.

It is not an unprimeable number, because it can be changed into a prime (120326321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71565 + ... + 73226.

It is an arithmetic number, because the mean of its divisors is an integer number (20126088).

Almost surely, 2^120321321 is an apocalyptic number.

It is an amenable number.

120321321 is a deficient number, since it is larger than the sum of its proper divisors (40687383).

120321321 is a wasteful number, since it uses less digits than its factorization.

120321321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145071.

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

The square root of 120321321 is about 10969.1075753682. The cubic root of 120321321 is about 493.6822701307.

Adding to 120321321 its reverse (123123021), we get a palindrome (243444342).

The spelling of 120321321 in words is "one hundred twenty million, three hundred twenty-one thousand, three hundred twenty-one".