2001103140 has 24 divisors (see below), whose sum is σ = 5603088960. Its totient is φ = 533627488.

The previous prime is 2001103129. The next prime is 2001103141. The reversal of 2001103140 is 413011002.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (2001103141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16675800 + ... + 16675919.

It is an arithmetic number, because the mean of its divisors is an integer number (233462040).

Almost surely, 2^2001103140 is an apocalyptic number.

2001103140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2001103140 is an abundant number, since it is smaller than the sum of its proper divisors (3601985820).

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

2001103140 is a wasteful number, since it uses less digits than its factorization.

2001103140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33351731 (or 33351729 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 2001103140 is about 44733.6913299137. The cubic root of 2001103140 is about 1260.1526522030.

Adding to 2001103140 its reverse (413011002), we get a palindrome (2414114142).

The spelling of 2001103140 in words is "two billion, one million, one hundred three thousand, one hundred forty".