320003303002000 has 160 divisors (see below), whose sum is σ = 819375857374464. Its totient is φ = 120458287872000.

The previous prime is 320003303001979. The next prime is 320003303002007. The reversal of 320003303002000 is 200303300023.

It is a happy number.

It is a super-2 number, since 2×320003303002000² (a number of 30 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (320003303002007) 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, 304489429 + ... + 305538571.

Almost surely, 2^{320003303002000} 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 320003303002000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (409687928687232).

320003303002000 is an abundant number, since it is smaller than the sum of its proper divisors (499372554372464).

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

320003303002000 is a wasteful number, since it uses less digits than its factorization.

320003303002000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1058154 (or 1058138 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 16.

Adding to 320003303002000 its reverse (200303300023), we get a palindrome (320203606302023).

The spelling of 320003303002000 in words is "three hundred twenty trillion, three billion, three hundred three million, two thousand".