331303122 has 40 divisors (see below), whose sum is σ = 748256256. Its totient is φ = 109558008.

The previous prime is 331303103. The next prime is 331303151. The reversal of 331303122 is 221303133.

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

It is a junction number, because it is equal to n+sod(n) for n = 331303095 and 331303104.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 12523 + ... + 28625.

Almost surely, 2^331303122 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 331303122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (374128128).

331303122 is an abundant number, since it is smaller than the sum of its proper divisors (416953134).

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

331303122 is a wasteful number, since it uses less digits than its factorization.

331303122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16244 (or 16235 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

The square root of 331303122 is about 18201.7340382723. The cubic root of 331303122 is about 691.9507368564.

Adding to 331303122 its reverse (221303133), we get a palindrome (552606255).

The spelling of 331303122 in words is "three hundred thirty-one million, three hundred three thousand, one hundred twenty-two".