2123000330321 has 4 divisors (see below), whose sum is σ = 2286308048052. Its totient is φ = 1959692612592.

The previous prime is 2123000330317. The next prime is 2123000330369. The reversal of 2123000330321 is 1230330003212.

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

It can be written as a sum of positive squares in 2 ways, for example, as 656748160000 + 1466252170321 = 810400^2 + 1210889^2 .

It is not a de Polignac number, because 2123000330321 - 2² = 2123000330317 is a prime.

It is a super-2 number, since 2×2123000330321² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2123000330293 and 2123000330302.

It is not an unprimeable number, because it can be changed into a prime (2123000330621) 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, 81653858846 + ... + 81653858871.

It is an arithmetic number, because the mean of its divisors is an integer number (571577012013).

Almost surely, 2^{2123000330321} is an apocalyptic number.

It is an amenable number.

2123000330321 is a deficient number, since it is larger than the sum of its proper divisors (163307717731).

2123000330321 is a wasteful number, since it uses less digits than its factorization.

2123000330321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163307717730.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 2123000330321 its reverse (1230330003212), we get a palindrome (3353330333533).

The spelling of 2123000330321 in words is "two trillion, one hundred twenty-three billion, three hundred thirty thousand, three hundred twenty-one".