103215330 has 128 divisors (see below), whose sum is σ = 295488000. Its totient is φ = 25546752.

The previous prime is 103215323. The next prime is 103215419. The reversal of 103215330 is 33512301.

103215330 is a `hidden beast` number, since 10 + 321 + 5 + 330 = 666.

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

It is a Curzon 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 63 ways as a sum of consecutive naturals, for example, 518571 + ... + 518769.

It is an arithmetic number, because the mean of its divisors is an integer number (2308500).

Almost surely, 2^103215330 is an apocalyptic number.

103215330 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 103215330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (147744000).

103215330 is an abundant number, since it is smaller than the sum of its proper divisors (192272670).

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

103215330 is a wasteful number, since it uses less digits than its factorization.

103215330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345 (or 339 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 18.

The square root of 103215330 is about 10159.4945740425. The cubic root of 103215330 is about 469.0812442696.

Adding to 103215330 its reverse (33512301), we get a palindrome (136727631).

It can be divided in two parts, 10321 and 5330, that added together give a palindrome (15651).

The spelling of 103215330 in words is "one hundred three million, two hundred fifteen thousand, three hundred thirty".