320120333212131 has 6 divisors (see below), whose sum is σ = 462396036861980. Its totient is φ = 213413555474748.

The previous prime is 320120333212117. The next prime is 320120333212139. The reversal of 320120333212131 is 131212333021023.

320120333212131 is a `hidden beast` number, since 3 + 2 + 0 + 1 + 203 + 3 + 321 + 2 + 131 = 666.

It is not a de Polignac number, because 320120333212131 - 2⁶ = 320120333212067 is a prime.

It is a super-2 number, since 2×320120333212131² (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 = 320120333212095 and 320120333212104.

It is not an unprimeable number, because it can be changed into a prime (320120333212139) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 17784462956221 + ... + 17784462956238.

Almost surely, 2^{320120333212131} is an apocalyptic number.

320120333212131 is a deficient number, since it is larger than the sum of its proper divisors (142275703649849).

320120333212131 is a wasteful number, since it uses less digits than its factorization.

320120333212131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35568925912465 (or 35568925912462 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

Adding to 320120333212131 its reverse (131212333021023), we get a palindrome (451332666233154).

The spelling of 320120333212131 in words is "three hundred twenty trillion, one hundred twenty billion, three hundred thirty-three million, two hundred twelve thousand, one hundred thirty-one".