320212223131 has 4 divisors (see below), whose sum is σ = 320213357352. Its totient is φ = 320211088912.

The previous prime is 320212223117. The next prime is 320212223161. The reversal of 320212223131 is 131322212023.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 320212223131 - 2⁷ = 320212223003 is a prime.

It is a super-2 number, since 2×320212223131² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320212223161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 227400 + ... + 831946.

It is an arithmetic number, because the mean of its divisors is an integer number (80053339338).

Almost surely, 2^320212223131 is an apocalyptic number.

320212223131 is a deficient number, since it is larger than the sum of its proper divisors (1134221).

320212223131 is an equidigital number, since it uses as much as digits as its factorization.

320212223131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1134220.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 320212223131 its reverse (131322212023), we get a palindrome (451534435154).

The spelling of 320212223131 in words is "three hundred twenty billion, two hundred twelve million, two hundred twenty-three thousand, one hundred thirty-one".