2121320320223 has 8 divisors (see below), whose sum is σ = 2285146206000. Its totient is φ = 1957586920128.

The previous prime is 2121320320183. The next prime is 2121320320247. The reversal of 2121320320223 is 3220230231212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2121320320223 - 2³⁸ = 1846442413279 is a prime.

It is a super-2 number, since 2×2121320320223² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121320322223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23073773 + ... + 23165526.

It is an arithmetic number, because the mean of its divisors is an integer number (285643275750).

Almost surely, 2^{2121320320223} is an apocalyptic number.

2121320320223 is a deficient number, since it is larger than the sum of its proper divisors (163825885777).

2121320320223 is a wasteful number, since it uses less digits than its factorization.

2121320320223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46242841.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 2121320320223 its reverse (3220230231212), we get a palindrome (5341550551435).

The spelling of 2121320320223 in words is "two trillion, one hundred twenty-one billion, three hundred twenty million, three hundred twenty thousand, two hundred twenty-three".