6311312 has 40 divisors (see below), whose sum is σ = 14362176. Its totient is φ = 2630016.

The previous prime is 6311311. The next prime is 6311317. The reversal of 6311312 is 2131136.

It is a super-2 number, since 2×6311312² = 79665318322688, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6311311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3383 + ... + 4905.

Almost surely, 2^6311312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6311312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7181088).

6311312 is an abundant number, since it is smaller than the sum of its proper divisors (8050864).

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

6311312 is a wasteful number, since it uses less digits than its factorization.

6311312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1575 (or 1569 counting only the distinct ones).

The product of its digits is 108, while the sum is 17.

The square root of 6311312 is about 2512.2324733193. The cubic root of 6311312 is about 184.8019502177.

Adding to 6311312 its reverse (2131136), we get a palindrome (8442448).

The spelling of 6311312 in words is "six million, three hundred eleven thousand, three hundred twelve".