2121323230330 has 32 divisors (see below), whose sum is σ = 4095186076800. Its totient is φ = 788702496192.

The previous prime is 2121323230319. The next prime is 2121323230337. The reversal of 2121323230330 is 330323231212.

It is a junction number, because it is equal to n+sod(n) for n = 2121323230295 and 2121323230304.

It is not an unprimeable number, because it can be changed into a prime (2121323230337) 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, 105318790 + ... + 105338929.

It is an arithmetic number, because the mean of its divisors is an integer number (127974564900).

Almost surely, 2^{2121323230330} is an apocalyptic number.

2121323230330 is a deficient number, since it is larger than the sum of its proper divisors (1973862846470).

2121323230330 is a wasteful number, since it uses less digits than its factorization.

2121323230330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210657798.

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 2121323230330 its reverse (330323231212), we get a palindrome (2451646461542).

The spelling of 2121323230330 in words is "two trillion, one hundred twenty-one billion, three hundred twenty-three million, two hundred thirty thousand, three hundred thirty".