120343605 has 16 divisors (see below), whose sum is σ = 192685824. Its totient is φ = 64137920.

The previous prime is 120343603. The next prime is 120343607. The reversal of 120343605 is 506343021.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (120343603) and next prime (120343607).

It is not a de Polignac number, because 120343605 - 2¹ = 120343603 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120343603) 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 15 ways as a sum of consecutive naturals, for example, 39652 + ... + 42578.

It is an arithmetic number, because the mean of its divisors is an integer number (12042864).

Almost surely, 2^120343605 is an apocalyptic number.

120343605 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

120343605 is a deficient number, since it is larger than the sum of its proper divisors (72342219).

120343605 is a wasteful number, since it uses less digits than its factorization.

120343605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5676.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 120343605 is about 10970.1232901003. The cubic root of 120343605 is about 493.7127455735.

Adding to 120343605 its reverse (506343021), we get a palindrome (626686626).

The spelling of 120343605 in words is "one hundred twenty million, three hundred forty-three thousand, six hundred five".