2121330110323 has 4 divisors (see below), whose sum is σ = 2123117247240. Its totient is φ = 2119542973408.

The previous prime is 2121330110281. The next prime is 2121330110359. The reversal of 2121330110323 is 3230110331212.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2121330110323 - 2¹³ = 2121330102131 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2121330110294 and 2121330110303.

It is not an unprimeable number, because it can be changed into a prime (2121330110423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 893566678 + ... + 893569051.

It is an arithmetic number, because the mean of its divisors is an integer number (530779311810).

Almost surely, 2^{2121330110323} is an apocalyptic number.

2121330110323 is a deficient number, since it is larger than the sum of its proper divisors (1787136917).

2121330110323 is a wasteful number, since it uses less digits than its factorization.

2121330110323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1787136916.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 2121330110323 its reverse (3230110331212), we get a palindrome (5351440441535).

The spelling of 2121330110323 in words is "two trillion, one hundred twenty-one billion, three hundred thirty million, one hundred ten thousand, three hundred twenty-three".