311340403412 has 12 divisors (see below), whose sum is σ = 544871606580. Its totient is φ = 155662801536.

The previous prime is 311340403369. The next prime is 311340403421. The reversal of 311340403412 is 214304043113.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 108771997636 + 202568405776 = 329806^2 + 450076^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1754837 + ... + 1924092.

It is an arithmetic number, because the mean of its divisors is an integer number (45405967215).

Almost surely, 2^311340403412 is an apocalyptic number.

It is an amenable number.

311340403412 is a deficient number, since it is larger than the sum of its proper divisors (233531203168).

311340403412 is a wasteful number, since it uses less digits than its factorization.

311340403412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3700090 (or 3700088 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 311340403412 its reverse (214304043113), we get a palindrome (525644446525).

The spelling of 311340403412 in words is "three hundred eleven billion, three hundred forty million, four hundred three thousand, four hundred twelve".