311144214 has 16 divisors (see below), whose sum is σ = 623240640. Its totient is φ = 103556040.

The previous prime is 311144191. The next prime is 311144263. The reversal of 311144214 is 412441113.

311144214 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35392 + ... + 43299.

It is an arithmetic number, because the mean of its divisors is an integer number (38952540).

Almost surely, 2^311144214 is an apocalyptic number.

311144214 is an abundant number, since it is smaller than the sum of its proper divisors (312096426).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

311144214 is a wasteful number, since it uses less digits than its factorization.

311144214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79355.

The product of its digits is 384, while the sum is 21.

The square root of 311144214 is about 17639.2804275004. The cubic root of 311144214 is about 677.6216029688.

Adding to 311144214 its reverse (412441113), we get a palindrome (723585327).

The spelling of 311144214 in words is "three hundred eleven million, one hundred forty-four thousand, two hundred fourteen".