311123305214 has 4 divisors (see below), whose sum is σ = 466684957824. Its totient is φ = 155561652606.

The previous prime is 311123305189. The next prime is 311123305307. The reversal of 311123305214 is 412503321113.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×311123305214² (a number of 24 digits) contains 22 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 (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77780826302 + ... + 77780826305.

It is an arithmetic number, because the mean of its divisors is an integer number (116671239456).

Almost surely, 2^311123305214 is an apocalyptic number.

311123305214 is a deficient number, since it is larger than the sum of its proper divisors (155561652610).

311123305214 is a wasteful number, since it uses less digits than its factorization.

311123305214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155561652609.

The product of its (nonzero) digits is 2160, while the sum is 26.

Adding to 311123305214 its reverse (412503321113), we get a palindrome (723626626327).

The spelling of 311123305214 in words is "three hundred eleven billion, one hundred twenty-three million, three hundred five thousand, two hundred fourteen".