331032103220 has 768 divisors, whose sum is σ = 984980570112. Its totient is φ = 90459832320.

The previous prime is 331032103211. The next prime is 331032103229. The reversal of 331032103220 is 22301230133.

It is an interprime number because it is at equal distance from previous prime (331032103211) and next prime (331032103229).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 331032103192 and 331032103201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331032103229) by changing a digit.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 2526962555 + ... + 2526962685.

It is an arithmetic number, because the mean of its divisors is an integer number (1282526784).

Almost surely, 2^331032103220 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 331032103220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (492490285056).

331032103220 is an abundant number, since it is smaller than the sum of its proper divisors (653948466892).

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

331032103220 is a wasteful number, since it uses less digits than its factorization.

331032103220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320 (or 318 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 331032103220 its reverse (22301230133), we get a palindrome (353333333353).

The spelling of 331032103220 in words is "three hundred thirty-one billion, thirty-two million, one hundred three thousand, two hundred twenty".