2001323022100 has 36 divisors (see below), whose sum is σ = 4362345764224. Its totient is φ = 796939382880.

The previous prime is 2001323022091. The next prime is 2001323022137. The reversal of 2001323022100 is 12203231002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44850414 + ... + 44895013.

Almost surely, 2^{2001323022100} is an apocalyptic number.

2001323022100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2001323022100 is an abundant number, since it is smaller than the sum of its proper divisors (2361022742124).

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

2001323022100 is a wasteful number, since it uses less digits than its factorization.

2001323022100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89745664 (or 89745657 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 2001323022100 its reverse (12203231002), we get a palindrome (2013526253102).

The spelling of 2001323022100 in words is "two trillion, one billion, three hundred twenty-three million, twenty-two thousand, one hundred".