3111212314431 has 192 divisors, whose sum is σ = 5276096716800. Its totient is φ = 1750450445568.

The previous prime is 3111212314381. The next prime is 3111212314439. The reversal of 3111212314431 is 1344132121113.

3111212314431 is a `hidden beast` number, since 3 + 1 + 1 + 1 + 212 + 3 + 1 + 443 + 1 = 666.

It is not a de Polignac number, because 3111212314431 - 2⁷ = 3111212314303 is a prime.

It is a super-2 number, since 2×3111212314431² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3111212314395 and 3111212314404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3111212314439) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 4279521390 + ... + 4279522116.

It is an arithmetic number, because the mean of its divisors is an integer number (27479670400).

Almost surely, 2^{3111212314431} is an apocalyptic number.

3111212314431 is a deficient number, since it is larger than the sum of its proper divisors (2164884402369).

3111212314431 is a wasteful number, since it uses less digits than its factorization.

3111212314431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1378 (or 1375 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

Adding to 3111212314431 its reverse (1344132121113), we get a palindrome (4455344435544).

The spelling of 3111212314431 in words is "three trillion, one hundred eleven billion, two hundred twelve million, three hundred fourteen thousand, four hundred thirty-one".