12120315 has 8 divisors (see below), whose sum is σ = 19392528. Its totient is φ = 6464160.

The previous prime is 12120307. The next prime is 12120343. The reversal of 12120315 is 51302121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12120315 - 2³ = 12120307 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15), and also a Moran number because the ratio is a prime number: 808021 = 12120315 / (1 + 2 + 1 + 2 + 0 + 3 + 1 + 5).

It is a junction number, because it is equal to n+sod(n) for n = 12120294 and 12120303.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 403996 + ... + 404025.

It is an arithmetic number, because the mean of its divisors is an integer number (2424066).

Almost surely, 2^12120315 is an apocalyptic number.

12120315 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12120315 is a deficient number, since it is larger than the sum of its proper divisors (7272213).

12120315 is an equidigital number, since it uses as much as digits as its factorization.

12120315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 808029.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 12120315 is about 3481.4242775048. The cubic root of 12120315 is about 229.7054515563.

Adding to 12120315 its reverse (51302121), we get a palindrome (63422436).

The spelling of 12120315 in words is "twelve million, one hundred twenty thousand, three hundred fifteen".