311314230 has 96 divisors (see below), whose sum is σ = 834986880. Its totient is φ = 80424960.

The previous prime is 311314187. The next prime is 311314243. The reversal of 311314230 is 32413113.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 881734 + ... + 882086.

It is an arithmetic number, because the mean of its divisors is an integer number (8697780).

Almost surely, 2^311314230 is an apocalyptic number.

311314230 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 311314230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (417493440).

311314230 is an abundant number, since it is smaller than the sum of its proper divisors (523672650).

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

311314230 is a wasteful number, since it uses less digits than its factorization.

311314230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 646 (or 643 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 311314230 is about 17644.0990135512. The cubic root of 311314230 is about 677.7450029141.

Adding to 311314230 its reverse (32413113), we get a palindrome (343727343).

The spelling of 311314230 in words is "three hundred eleven million, three hundred fourteen thousand, two hundred thirty".