2001232003320 has 96 divisors (see below), whose sum is σ = 7095277116720. Its totient is φ = 485147151360.

The previous prime is 2001232003313. The next prime is 2001232003367. The reversal of 2001232003320 is 233002321002.

It is a happy number.

2001232003320 is a `hidden beast` number, since 2 + 0 + 0 + 12 + 320 + 0 + 332 + 0 = 666.

It is a super-2 number, since 2×2001232003320² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 2001232003293 and 2001232003302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 252676849 + ... + 252684768.

Almost surely, 2^{2001232003320} is an apocalyptic number.

2001232003320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2001232003320 is an abundant number, since it is smaller than the sum of its proper divisors (5094045113400).

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

2001232003320 is a wasteful number, since it uses less digits than its factorization.

2001232003320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505361645 (or 505361638 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 2001232003320 its reverse (233002321002), we get a palindrome (2234234324322).

The spelling of 2001232003320 in words is "two trillion, one billion, two hundred thirty-two million, three thousand, three hundred twenty".