2121103230 has 16 divisors (see below), whose sum is σ = 5090647824. Its totient is φ = 565627520.

The previous prime is 2121103207. The next prime is 2121103241. The reversal of 2121103230 is 323011212.

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 pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35351691 + ... + 35351750.

It is an arithmetic number, because the mean of its divisors is an integer number (318165489).

Almost surely, 2^2121103230 is an apocalyptic number.

2121103230 is an abundant number, since it is smaller than the sum of its proper divisors (2969544594).

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

2121103230 is a wasteful number, since it uses less digits than its factorization.

2121103230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70703451.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 2121103230 is about 46055.4364869122. The cubic root of 2121103230 is about 1284.8544562053.

Adding to 2121103230 its reverse (323011212), we get a palindrome (2444114442).

The spelling of 2121103230 in words is "two billion, one hundred twenty-one million, one hundred three thousand, two hundred thirty".