320131031323 has 8 divisors (see below), whose sum is σ = 321876731792. Its totient is φ = 318389895936.

The previous prime is 320131031317. The next prime is 320131031357. The reversal of 320131031323 is 323130131023.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 320131031323 - 2¹³ = 320131023131 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 320131031294 and 320131031303.

It is not an unprimeable number, because it can be changed into a prime (320131031303) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1000590 + ... + 1281187.

It is an arithmetic number, because the mean of its divisors is an integer number (40234591474).

Almost surely, 2^320131031323 is an apocalyptic number.

320131031323 is a deficient number, since it is larger than the sum of its proper divisors (1745700469).

320131031323 is a wasteful number, since it uses less digits than its factorization.

320131031323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2282541.

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

Adding to 320131031323 its reverse (323130131023), we get a palindrome (643261162346).

The spelling of 320131031323 in words is "three hundred twenty billion, one hundred thirty-one million, thirty-one thousand, three hundred twenty-three".