120001321 has 8 divisors (see below), whose sum is σ = 137800800. Its totient is φ = 103350240.

The previous prime is 120001313. The next prime is 120001337. The reversal of 120001321 is 123100021.

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

It is a cyclic number.

It is not a de Polignac number, because 120001321 - 2³ = 120001313 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120001298 and 120001307.

It is not an unprimeable number, because it can be changed into a prime (120001121) 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 7 ways as a sum of consecutive naturals, for example, 286876 + ... + 287293.

It is an arithmetic number, because the mean of its divisors is an integer number (17225100).

Almost surely, 2^120001321 is an apocalyptic number.

120001321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

120001321 is a deficient number, since it is larger than the sum of its proper divisors (17799479).

120001321 is a wasteful number, since it uses less digits than its factorization.

120001321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 574199.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 120001321 is about 10954.5114450623. The cubic root of 120001321 is about 493.2442247851.

Adding to 120001321 its reverse (123100021), we get a palindrome (243101342).

The spelling of 120001321 in words is "one hundred twenty million, one thousand, three hundred twenty-one".