331323412 has 48 divisors (see below), whose sum is σ = 686407680. Its totient is φ = 136936800.

The previous prime is 331323401. The next prime is 331323413. The reversal of 331323412 is 214323133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331323413) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 363237 + ... + 364147.

It is an arithmetic number, because the mean of its divisors is an integer number (14300160).

Almost surely, 2^331323412 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 331323412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (343203840).

331323412 is an abundant number, since it is smaller than the sum of its proper divisors (355084268).

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

331323412 is a wasteful number, since it uses less digits than its factorization.

331323412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1372 (or 1370 counting only the distinct ones).

The product of its digits is 1296, while the sum is 22.

The square root of 331323412 is about 18202.2913942174. The cubic root of 331323412 is about 691.9648622830.

Adding to 331323412 its reverse (214323133), we get a palindrome (545646545).

The spelling of 331323412 in words is "three hundred thirty-one million, three hundred twenty-three thousand, four hundred twelve".