13200221321123 has 4 divisors (see below), whose sum is σ = 13204450808808. Its totient is φ = 13195991833440.

The previous prime is 13200221321113. The next prime is 13200221321129. The reversal of 13200221321123 is 32112312200231.

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 13200221321123 - 2¹⁸ = 13200221058979 is a prime.

It is a super-2 number, since 2×13200221321123² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13200221321129) 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, 2114739161 + ... + 2114745402.

It is an arithmetic number, because the mean of its divisors is an integer number (3301112702202).

Almost surely, 2^{13200221321123} is an apocalyptic number.

13200221321123 is a deficient number, since it is larger than the sum of its proper divisors (4229487685).

13200221321123 is an equidigital number, since it uses as much as digits as its factorization.

13200221321123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4229487684.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 13200221321123 its reverse (32112312200231), we get a palindrome (45312533521354).

The spelling of 13200221321123 in words is "thirteen trillion, two hundred billion, two hundred twenty-one million, three hundred twenty-one thousand, one hundred twenty-three".