331130214 has 64 divisors (see below), whose sum is σ = 786297600. Its totient is φ = 102985344.

The previous prime is 331130213. The next prime is 331130221. The reversal of 331130214 is 412031133.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331130213) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 66334 + ... + 71150.

It is an arithmetic number, because the mean of its divisors is an integer number (12285900).

Almost surely, 2^331130214 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 331130214, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (393148800).

331130214 is an abundant number, since it is smaller than the sum of its proper divisors (455167386).

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

331130214 is a wasteful number, since it uses less digits than its factorization.

331130214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4914 (or 4908 counting only the distinct ones).

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

The square root of 331130214 is about 18196.9836511439. The cubic root of 331130214 is about 691.8303389184.

Adding to 331130214 its reverse (412031133), we get a palindrome (743161347).

The spelling of 331130214 in words is "three hundred thirty-one million, one hundred thirty thousand, two hundred fourteen".