2001023714172 has 96 divisors (see below), whose sum is σ = 5617831636480. Its totient is φ = 541541479680.

The previous prime is 2001023714161. The next prime is 2001023714189. The reversal of 2001023714172 is 2714173201002.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9918222 + ... + 10117962.

Almost surely, 2^{2001023714172} is an apocalyptic number.

It is an amenable number.

2001023714172 is an abundant number, since it is smaller than the sum of its proper divisors (3616807922308).

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

2001023714172 is a wasteful number, since it uses less digits than its factorization.

2001023714172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206051 (or 206049 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 30.

Adding to 2001023714172 its reverse (2714173201002), we get a palindrome (4715196915174).

The spelling of 2001023714172 in words is "two trillion, one billion, twenty-three million, seven hundred fourteen thousand, one hundred seventy-two".