311421506836 has 48 divisors (see below), whose sum is σ = 595596395520. Its totient is φ = 141302052320.

The previous prime is 311421506819. The next prime is 311421506867. The reversal of 311421506836 is 638605124113.

It is a super-3 number, since 3×311421506836³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 105960255 + ... + 105963193.

It is an arithmetic number, because the mean of its divisors is an integer number (12408258240).

Almost surely, 2^311421506836 is an apocalyptic number.

It is an amenable number.

311421506836 is a deficient number, since it is larger than the sum of its proper divisors (284174888684).

311421506836 is a wasteful number, since it uses less digits than its factorization.

311421506836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6444 (or 6442 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 40.

The spelling of 311421506836 in words is "three hundred eleven billion, four hundred twenty-one million, five hundred six thousand, eight hundred thirty-six".