120013103321 has 4 divisors (see below), whose sum is σ = 127072697652. Its totient is φ = 112953508992.

The previous prime is 120013103311. The next prime is 120013103333. The reversal of 120013103321 is 123301310021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 123301310021 = 491 ⋅251122831.

It can be written as a sum of positive squares in 2 ways, for example, as 55020739225 + 64992364096 = 234565^2 + 254936^2 .

It is a cyclic number.

It is not a de Polignac number, because 120013103321 - 2⁶ = 120013103257 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 7059594313 = 120013103321 / (1 + 2 + 0 + 0 + 1 + 3 + 1 + 0 + 3 + 3 + 2 + 1).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 120013103321.

It is not an unprimeable number, because it can be changed into a prime (120013103311) 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, 3529797140 + ... + 3529797173.

It is an arithmetic number, because the mean of its divisors is an integer number (31768174413).

Almost surely, 2^120013103321 is an apocalyptic number.

It is an amenable number.

120013103321 is a deficient number, since it is larger than the sum of its proper divisors (7059594331).

120013103321 is an equidigital number, since it uses as much as digits as its factorization.

120013103321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7059594330.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 120013103321 its reverse (123301310021), we get a palindrome (243314413342).

The spelling of 120013103321 in words is "one hundred twenty billion, thirteen million, one hundred three thousand, three hundred twenty-one".