31320310211331 has 8 divisors (see below), whose sum is σ = 41760440505024. Its totient is φ = 20880193362600.

The previous prime is 31320310211251. The next prime is 31320310211339. The reversal of 31320310211331 is 13311201302313.

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

It is not a de Polignac number, because 31320310211331 - 2¹⁰ = 31320310210307 is a prime.

It is a super-2 number, since 2×31320310211331² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31320310211339) 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, 5161440 + ... + 9448866.

It is an arithmetic number, because the mean of its divisors is an integer number (5220055063128).

Almost surely, 2^{31320310211331} is an apocalyptic number.

31320310211331 is a deficient number, since it is larger than the sum of its proper divisors (10440130293693).

31320310211331 is a wasteful number, since it uses less digits than its factorization.

31320310211331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6722481.

The product of its (nonzero) digits is 972, while the sum is 24.

Adding to 31320310211331 its reverse (13311201302313), we get a palindrome (44631511513644).

The spelling of 31320310211331 in words is "thirty-one trillion, three hundred twenty billion, three hundred ten million, two hundred eleven thousand, three hundred thirty-one".