103215112 has 64 divisors (see below), whose sum is σ = 259862400. Its totient is φ = 37117440.

The previous prime is 103215083. The next prime is 103215113. The reversal of 103215112 is 211512301.

It is not an unprimeable number, because it can be changed into a prime (103215113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1564 + ... + 14452.

It is an arithmetic number, because the mean of its divisors is an integer number (4060350).

Almost surely, 2^103215112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 103215112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (129931200).

103215112 is an abundant number, since it is smaller than the sum of its proper divisors (156647288).

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

103215112 is a wasteful number, since it uses less digits than its factorization.

103215112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12926 (or 12922 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 16.

The square root of 103215112 is about 10159.4838451567. The cubic root of 103215112 is about 469.0809140222.

Adding to 103215112 its reverse (211512301), we get a palindrome (314727413).

The spelling of 103215112 in words is "one hundred three million, two hundred fifteen thousand, one hundred twelve".