120313231321 has 4 divisors (see below), whose sum is σ = 120558268944. Its totient is φ = 120068193700.

The previous prime is 120313231309. The next prime is 120313231369. The reversal of 120313231321 is 123132313021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 120313231321 - 2²⁵ = 120279676889 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120313231292 and 120313231301.

It is not an unprimeable number, because it can be changed into a prime (120313231301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 122518075 + ... + 122519056.

It is an arithmetic number, because the mean of its divisors is an integer number (30139567236).

Almost surely, 2^120313231321 is an apocalyptic number.

It is an amenable number.

120313231321 is a deficient number, since it is larger than the sum of its proper divisors (245037623).

120313231321 is an equidigital number, since it uses as much as digits as its factorization.

120313231321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245037622.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 120313231321 its reverse (123132313021), we get a palindrome (243445544342).

The spelling of 120313231321 in words is "one hundred twenty billion, three hundred thirteen million, two hundred thirty-one thousand, three hundred twenty-one".