2121123323230 has 24 divisors (see below), whose sum is σ = 4055822664408. Its totient is φ = 798540544128.

The previous prime is 2121123323177. The next prime is 2121123323233. The reversal of 2121123323230 is 323233211212.

It is a junction number, because it is equal to n+sod(n) for n = 2121123323195 and 2121123323204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121123323233) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 366973464 + ... + 366979243.

It is an arithmetic number, because the mean of its divisors is an integer number (168992611017).

Almost surely, 2^{2121123323230} is an apocalyptic number.

2121123323230 is a deficient number, since it is larger than the sum of its proper divisors (1934699341178).

2121123323230 is a wasteful number, since it uses less digits than its factorization.

2121123323230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 733952748 (or 733952731 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 2121123323230 its reverse (323233211212), we get a palindrome (2444356534442).

The spelling of 2121123323230 in words is "two trillion, one hundred twenty-one billion, one hundred twenty-three million, three hundred twenty-three thousand, two hundred thirty".