311320130212231 has 16 divisors (see below), whose sum is σ = 358307071476544. Its totient is φ = 264963687715584.

The previous prime is 311320130212177. The next prime is 311320130212241. The reversal of 311320130212231 is 132212031023113.

It is a cyclic number.

It is not a de Polignac number, because 311320130212231 - 2⁹ = 311320130211719 is a prime.

It is a super-2 number, since 2×311320130212231² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 311320130212196 and 311320130212205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311320130212241) 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, 95882790 + ... + 99076483.

It is an arithmetic number, because the mean of its divisors is an integer number (22394191967284).

Almost surely, 2^{311320130212231} is an apocalyptic number.

311320130212231 is a deficient number, since it is larger than the sum of its proper divisors (46986941264313).

311320130212231 is a wasteful number, since it uses less digits than its factorization.

311320130212231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194960890.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 311320130212231 its reverse (132212031023113), we get a palindrome (443532161235344).

The spelling of 311320130212231 in words is "three hundred eleven trillion, three hundred twenty billion, one hundred thirty million, two hundred twelve thousand, two hundred thirty-one".