331011320332 has 144 divisors (see below), whose sum is σ = 743564295936. Its totient is φ = 127488816000.

The previous prime is 331011320293. The next prime is 331011320347. The reversal of 331011320332 is 233023110133.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 78232657 + ... + 78236887.

It is an arithmetic number, because the mean of its divisors is an integer number (5163640944).

Almost surely, 2^331011320332 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 331011320332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (371782147968).

331011320332 is an abundant number, since it is smaller than the sum of its proper divisors (412552975604).

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

331011320332 is a wasteful number, since it uses less digits than its factorization.

331011320332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4668 (or 4659 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 331011320332 its reverse (233023110133), we get a palindrome (564034430465).

The spelling of 331011320332 in words is "three hundred thirty-one billion, eleven million, three hundred twenty thousand, three hundred thirty-two".