320121202322131 has 16 divisors (see below), whose sum is σ = 378471099191040. Its totient is φ = 264926013720480.

The previous prime is 320121202322081. The next prime is 320121202322167. The reversal of 320121202322131 is 131223202121023.

It is not a de Polignac number, because 320121202322131 - 2¹¹ = 320121202320083 is a prime.

It is a super-2 number, since 2×320121202322131² (a number of 30 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 = 320121202322096 and 320121202322105.

It is not an unprimeable number, because it can be changed into a prime (320121202322171) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23492716 + ... + 34527526.

It is an arithmetic number, because the mean of its divisors is an integer number (23654443699440).

Almost surely, 2^{320121202322131} is an apocalyptic number.

320121202322131 is a deficient number, since it is larger than the sum of its proper divisors (58349896868909).

320121202322131 is a wasteful number, since it uses less digits than its factorization.

320121202322131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11177754.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 320121202322131 its reverse (131223202121023), we get a palindrome (451344404443154).

The spelling of 320121202322131 in words is "three hundred twenty trillion, one hundred twenty-one billion, two hundred two million, three hundred twenty-two thousand, one hundred thirty-one".