120415320 has 48 divisors (see below), whose sum is σ = 391350960. Its totient is φ = 32110656.

The previous prime is 120415291. The next prime is 120415349. The reversal of 120415320 is 23514021.

It is an interprime number because it is at equal distance from previous prime (120415291) and next prime (120415349).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 120415293 and 120415302.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 166884 + ... + 167603.

It is an arithmetic number, because the mean of its divisors is an integer number (8153145).

Almost surely, 2^120415320 is an apocalyptic number.

120415320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120415320 is an abundant number, since it is smaller than the sum of its proper divisors (270935640).

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

120415320 is a wasteful number, since it uses less digits than its factorization.

120415320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334504 (or 334497 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 120415320 is about 10973.3914538761. The cubic root of 120415320 is about 493.8107969787.

Adding to 120415320 its reverse (23514021), we get a palindrome (143929341).

The spelling of 120415320 in words is "one hundred twenty million, four hundred fifteen thousand, three hundred twenty".