331002330321340 has 96 divisors (see below), whose sum is σ = 745973534638080. Its totient is φ = 122925696132096.

The previous prime is 331002330321337. The next prime is 331002330321347. The reversal of 331002330321340 is 43123033200133.

It is a junction number, because it is equal to n+sod(n) for n = 331002330321299 and 331002330321308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331002330321347) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24677029 + ... + 35650531.

It is an arithmetic number, because the mean of its divisors is an integer number (7770557652480).

Almost surely, 2^{331002330321340} 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 331002330321340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (372986767319040).

331002330321340 is an abundant number, since it is smaller than the sum of its proper divisors (414971204316740).

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

331002330321340 is a wasteful number, since it uses less digits than its factorization.

331002330321340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10974731 (or 10974729 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 28.

Adding to 331002330321340 its reverse (43123033200133), we get a palindrome (374125363521473).

The spelling of 331002330321340 in words is "three hundred thirty-one trillion, two billion, three hundred thirty million, three hundred twenty-one thousand, three hundred forty".