2000001320 has 64 divisors (see below), whose sum is σ = 4618252800. Its totient is φ = 779051520.

The previous prime is 2000001287. The next prime is 2000001349. The reversal of 2000001320 is 231000002.

It is a Harshad number since it is a multiple of its sum of digits (8).

It is a junction number, because it is equal to n+sod(n) for n = 2000001298 and 2000001307.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1506497 + ... + 1507823.

It is an arithmetic number, because the mean of its divisors is an integer number (72160200).

Almost surely, 2^2000001320 is an apocalyptic number.

2000001320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2000001320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2309126400).

2000001320 is an abundant number, since it is smaller than the sum of its proper divisors (2618251480).

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

2000001320 is a wasteful number, since it uses less digits than its factorization.

2000001320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2298 (or 2294 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 8.

The square root of 2000001320 is about 44721.3743080420. The cubic root of 2000001320 is about 1259.9213270774.

Adding to 2000001320 its reverse (231000002), we get a palindrome (2231001322).

The spelling of 2000001320 in words is "two billion, one thousand, three hundred twenty".