331009116 has 24 divisors (see below), whose sum is σ = 785447040. Its totient is φ = 108466032.

The previous prime is 331009111. The next prime is 331009121. The reversal of 331009116 is 611900133.

It is an interprime number because it is at equal distance from previous prime (331009111) and next prime (331009121).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331009111) 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, 233056 + ... + 234471.

It is an arithmetic number, because the mean of its divisors is an integer number (32726960).

Almost surely, 2^331009116 is an apocalyptic number.

It is an amenable number.

331009116 is an abundant number, since it is smaller than the sum of its proper divisors (454437924).

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

331009116 is a wasteful number, since it uses less digits than its factorization.

331009116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 467593 (or 467591 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 24.

The square root of 331009116 is about 18193.6559272731. The cubic root of 331009116 is about 691.7459919537.

Adding to 331009116 its reverse (611900133), we get a palindrome (942909249).

The spelling of 331009116 in words is "three hundred thirty-one million, nine thousand, one hundred sixteen".