120340520 has 16 divisors (see below), whose sum is σ = 270766260. Its totient is φ = 48136192.

The previous prime is 120340489. The next prime is 120340523. The reversal of 120340520 is 25043021.

It can be written as a sum of positive squares in 2 ways, for example, as 115820644 + 4519876 = 10762^2 + 2126^2 .

It is not an unprimeable number, because it can be changed into a prime (120340523) 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, 1504217 + ... + 1504296.

Almost surely, 2^120340520 is an apocalyptic number.

120340520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120340520 is an abundant number, since it is smaller than the sum of its proper divisors (150425740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

120340520 is a wasteful number, since it uses less digits than its factorization.

120340520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3008524 (or 3008520 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 120340520 is about 10969.9826800228. The cubic root of 120340520 is about 493.7085267734.

Adding to 120340520 its reverse (25043021), we get a palindrome (145383541).

The spelling of 120340520 in words is "one hundred twenty million, three hundred forty thousand, five hundred twenty".