2001100453 has 8 divisors (see below), whose sum is σ = 2183342400. Its totient is φ = 1818912480.

The previous prime is 2001100433. The next prime is 2001100483. The reversal of 2001100453 is 3540011002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-2001100453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001100403) 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, 140601 + ... + 154177.

It is an arithmetic number, because the mean of its divisors is an integer number (272917800).

Almost surely, 2^2001100453 is an apocalyptic number.

It is an amenable number.

2001100453 is a deficient number, since it is larger than the sum of its proper divisors (182241947).

2001100453 is a wasteful number, since it uses less digits than its factorization.

2001100453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26987.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 2001100453 is about 44733.6612966120. The cubic root of 2001100453 is about 1260.1520881754.

Adding to 2001100453 its reverse (3540011002), we get a palindrome (5541111455).

The spelling of 2001100453 in words is "two billion, one million, one hundred thousand, four hundred fifty-three".