2001111024 has 80 divisors (see below), whose sum is σ = 5735168640. Its totient is φ = 596110080.

The previous prime is 2001111023. The next prime is 2001111029. The reversal of 2001111024 is 4201111002.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001111023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 967 + ... + 63270.

It is an arithmetic number, because the mean of its divisors is an integer number (71689608).

Almost surely, 2^2001111024 is an apocalyptic number.

2001111024 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2001111024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2867584320).

2001111024 is an abundant number, since it is smaller than the sum of its proper divisors (3734057616).

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

2001111024 is a wasteful number, since it uses less digits than its factorization.

2001111024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64318 (or 64312 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 2001111024 is about 44733.7794513274. The cubic root of 2001111024 is about 1260.1543071286.

Adding to 2001111024 its reverse (4201111002), we get a palindrome (6202222026).

The spelling of 2001111024 in words is "two billion, one million, one hundred eleven thousand, twenty-four".