120930305 has 4 divisors (see below), whose sum is σ = 145116372. Its totient is φ = 96744240.

The previous prime is 120930301. The next prime is 120930323. The reversal of 120930305 is 503039021.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 15272464 + 105657841 = 3908^2 + 10279^2 .

It is not a de Polignac number, because 120930305 - 2² = 120930301 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120930301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12093026 + ... + 12093035.

It is an arithmetic number, because the mean of its divisors is an integer number (36279093).

It is a Proth number, since it is equal to 7381 ⋅ 2¹⁴ + 1 and 7381 < 2¹⁴.

Almost surely, 2^120930305 is an apocalyptic number.

It is an amenable number.

120930305 is a deficient number, since it is larger than the sum of its proper divisors (24186067).

120930305 is an equidigital number, since it uses as much as digits as its factorization.

120930305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24186066.

The product of its (nonzero) digits is 810, while the sum is 23.

The square root of 120930305 is about 10996.8315891442. The cubic root of 120930305 is about 494.5137625699.

Adding to 120930305 its reverse (503039021), we get a palindrome (623969326).

The spelling of 120930305 in words is "one hundred twenty million, nine hundred thirty thousand, three hundred five".