120740321 has 16 divisors (see below), whose sum is σ = 134663424. Its totient is φ = 107547264.

The previous prime is 120740309. The next prime is 120740327. The reversal of 120740321 is 123047021.

It is a cyclic number.

It is not a de Polignac number, because 120740321 - 2¹⁴ = 120723937 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120740293 and 120740302.

It is not an unprimeable number, because it can be changed into a prime (120740327) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43250 + ... + 45956.

It is an arithmetic number, because the mean of its divisors is an integer number (8416464).

Almost surely, 2^120740321 is an apocalyptic number.

It is an amenable number.

120740321 is a deficient number, since it is larger than the sum of its proper divisors (13923103).

120740321 is a wasteful number, since it uses less digits than its factorization.

120740321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2840.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 120740321 is about 10988.1900693426. The cubic root of 120740321 is about 494.2546630701.

Adding to 120740321 its reverse (123047021), we get a palindrome (243787342).

The spelling of 120740321 in words is "one hundred twenty million, seven hundred forty thousand, three hundred twenty-one".