2001312323100 has 108 divisors (see below), whose sum is σ = 6642002478384. Its totient is φ = 502290147840.

The previous prime is 2001312323063. The next prime is 2001312323137. The reversal of 2001312323100 is 13232131002.

2001312323100 is a `hidden beast` number, since 20 + 0 + 1 + 312 + 323 + 10 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (2001312323063) and next prime (2001312323137).

It is a super-2 number, since 2×2001312323100² (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 congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 65387064 + ... + 65417663.

It is an arithmetic number, because the mean of its divisors is an integer number (61500022948).

Almost surely, 2^{2001312323100} is an apocalyptic number.

2001312323100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2001312323100 is an abundant number, since it is smaller than the sum of its proper divisors (4640690155284).

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

2001312323100 is a wasteful number, since it uses less digits than its factorization.

2001312323100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130804764 (or 130804754 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 2001312323100 its reverse (13232131002), we get a palindrome (2014544454102).

The spelling of 2001312323100 in words is "two trillion, one billion, three hundred twelve million, three hundred twenty-three thousand, one hundred".