311000130 has 96 divisors (see below), whose sum is σ = 928122624. Its totient is φ = 70777728.

The previous prime is 311000099. The next prime is 311000161. The reversal of 311000130 is 31000113.

It is an interprime number because it is at equal distance from previous prime (311000099) and next prime (311000161).

It is a Harshad number since it is a multiple of its sum of digits (9).

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, 164752 + ... + 166628.

It is an arithmetic number, because the mean of its divisors is an integer number (9667944).

Almost surely, 2^311000130 is an apocalyptic number.

311000130 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 311000130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (464061312).

311000130 is an abundant number, since it is smaller than the sum of its proper divisors (617122494).

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

311000130 is a wasteful number, since it uses less digits than its factorization.

311000130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2160 (or 2157 counting only the distinct ones).

The product of its (nonzero) digits is 9, while the sum is 9.

The square root of 311000130 is about 17635.1957743599. The cubic root of 311000130 is about 677.5169896295.

Adding to 311000130 its reverse (31000113), we get a palindrome (342000243).

The spelling of 311000130 in words is "three hundred eleven million, one hundred thirty", and thus it is an aban number.