2121130230 has 32 divisors (see below), whose sum is σ = 5209104384. Its totient is φ = 552480096.

The previous prime is 2121130211. The next prime is 2121130237. The reversal of 2121130230 is 320311212.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121130237) 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, 820854 + ... + 823433.

It is an arithmetic number, because the mean of its divisors is an integer number (162784512).

Almost surely, 2^2121130230 is an apocalyptic number.

2121130230 is an abundant number, since it is smaller than the sum of its proper divisors (3087974154).

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

2121130230 is a wasteful number, since it uses less digits than its factorization.

2121130230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1644340.

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

The square root of 2121130230 is about 46055.7296109833. The cubic root of 2121130230 is about 1284.8599079159.

Adding to 2121130230 its reverse (320311212), we get a palindrome (2441441442).

The spelling of 2121130230 in words is "two billion, one hundred twenty-one million, one hundred thirty thousand, two hundred thirty".