320120333131 has 4 divisors (see below), whose sum is σ = 320129134552. Its totient is φ = 320111531712.

The previous prime is 320120333111. The next prime is 320120333179. The reversal of 320120333131 is 131333021023.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 320120333131 - 2¹³ = 320120324939 is a prime.

It is a super-2 number, since 2×320120333131² (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 (320120333111) 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, 4345926 + ... + 4418971.

It is an arithmetic number, because the mean of its divisors is an integer number (80032283638).

Almost surely, 2^320120333131 is an apocalyptic number.

320120333131 is a deficient number, since it is larger than the sum of its proper divisors (8801421).

320120333131 is an equidigital number, since it uses as much as digits as its factorization.

320120333131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8801420.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 320120333131 its reverse (131333021023), we get a palindrome (451453354154).

The spelling of 320120333131 in words is "three hundred twenty billion, one hundred twenty million, three hundred thirty-three thousand, one hundred thirty-one".