320211310331 has 16 divisors (see below), whose sum is σ = 350209466880. Its totient is φ = 290362065120.

The previous prime is 320211310301. The next prime is 320211310333. The reversal of 320211310331 is 133013112023.

It is a cyclic number.

It is not a de Polignac number, because 320211310331 - 2⁶ = 320211310267 is a prime.

It is a super-2 number, since 2×320211310331² (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 (320211310333) 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, 7327061 + ... + 7370633.

It is an arithmetic number, because the mean of its divisors is an integer number (21888091680).

Almost surely, 2^320211310331 is an apocalyptic number.

320211310331 is a deficient number, since it is larger than the sum of its proper divisors (29998156549).

320211310331 is a wasteful number, since it uses less digits than its factorization.

320211310331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45266.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 320211310331 its reverse (133013112023), we get a palindrome (453224422354).

The spelling of 320211310331 in words is "three hundred twenty billion, two hundred eleven million, three hundred ten thousand, three hundred thirty-one".