311200312 has 16 divisors (see below), whose sum is σ = 594510840. Its totient is φ = 152664096.

The previous prime is 311200243. The next prime is 311200319. The reversal of 311200312 is 213002113.

It is a junction number, because it is equal to n+sod(n) for n = 311200292 and 311200301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311200319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 366558 + ... + 367405.

Almost surely, 2^311200312 is an apocalyptic number.

It is an amenable number.

311200312 is a deficient number, since it is larger than the sum of its proper divisors (283310528).

311200312 is a wasteful number, since it uses less digits than its factorization.

311200312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 734022 (or 734018 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 311200312 is about 17640.8705000632. The cubic root of 311200312 is about 677.6623246349.

Adding to 311200312 its reverse (213002113), we get a palindrome (524202425).

The spelling of 311200312 in words is "three hundred eleven million, two hundred thousand, three hundred twelve".