2001123232110 has 48 divisors (see below), whose sum is σ = 5329820910960. Its totient is φ = 520617425280.

The previous prime is 2001123232099. The next prime is 2001123232153. The reversal of 2001123232110 is 112323211002.

2001123232110 is a `hidden beast` number, since 20 + 0 + 112 + 323 + 211 + 0 = 666.

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

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 271151220 + ... + 271158599.

It is an arithmetic number, because the mean of its divisors is an integer number (111037935645).

Almost surely, 2^{2001123232110} is an apocalyptic number.

2001123232110 is an abundant number, since it is smaller than the sum of its proper divisors (3328697678850).

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

2001123232110 is a wasteful number, since it uses less digits than its factorization.

2001123232110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 542309873 (or 542309870 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 2001123232110 its reverse (112323211002), we get a palindrome (2113446443112).

The spelling of 2001123232110 in words is "two trillion, one billion, one hundred twenty-three million, two hundred thirty-two thousand, one hundred ten".