10123200323221 has 4 divisors (see below), whose sum is σ = 10123207134444. Its totient is φ = 10123193512000.

The previous prime is 10123200323213. The next prime is 10123200323251. The reversal of 10123200323221 is 12232300232101.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 5163738132996 + 4959462190225 = 2272386^2 + 2226985^2 .

It is a cyclic number.

It is not a de Polignac number, because 10123200323221 - 2³ = 10123200323213 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10123200323192 and 10123200323201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10123200323251) 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, 118930 + ... + 4501171.

It is an arithmetic number, because the mean of its divisors is an integer number (2530801783611).

Almost surely, 2^{10123200323221} is an apocalyptic number.

It is an amenable number.

10123200323221 is a deficient number, since it is larger than the sum of its proper divisors (6811223).

10123200323221 is an equidigital number, since it uses as much as digits as its factorization.

10123200323221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6811222.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 10123200323221 its reverse (12232300232101), we get a palindrome (22355500555322).

The spelling of 10123200323221 in words is "ten trillion, one hundred twenty-three billion, two hundred million, three hundred twenty-three thousand, two hundred twenty-one".