12315030 has 96 divisors (see below), whose sum is σ = 36681984. Its totient is φ = 2590848.

The previous prime is 12315013. The next prime is 12315077. The reversal of 12315030 is 3051321.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 35317 + ... + 35663.

It is an arithmetic number, because the mean of its divisors is an integer number (382104).

Almost surely, 2^12315030 is an apocalyptic number.

12315030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12315030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18340992).

12315030 is an abundant number, since it is smaller than the sum of its proper divisors (24366954).

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

12315030 is a wasteful number, since it uses less digits than its factorization.

12315030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390 (or 377 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 15.

The square root of 12315030 is about 3509.2777034598. The cubic root of 12315030 is about 230.9290087505.

Adding to 12315030 its reverse (3051321), we get a palindrome (15366351).

The spelling of 12315030 in words is "twelve million, three hundred fifteen thousand, thirty".