2100441001 has 4 divisors (see below), whose sum is σ = 2223996372. Its totient is φ = 1976885632.

The previous prime is 2100440941. The next prime is 2100441017. The reversal of 2100441001 is 1001440012.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1870130025 + 230310976 = 43245^2 + 15176^2 .

It is a cyclic number.

It is not a de Polignac number, because 2100441001 - 2¹³ = 2100432809 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2100441601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61777660 + ... + 61777693.

It is an arithmetic number, because the mean of its divisors is an integer number (555999093).

Almost surely, 2^2100441001 is an apocalyptic number.

It is an amenable number.

2100441001 is a deficient number, since it is larger than the sum of its proper divisors (123555371).

2100441001 is a wasteful number, since it uses less digits than its factorization.

2100441001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123555370.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 2100441001 is about 45830.5684123599. The cubic root of 2100441001 is about 1280.6687994582.

Adding to 2100441001 its reverse (1001440012), we get a palindrome (3101881013).

The spelling of 2100441001 in words is "two billion, one hundred million, four hundred forty-one thousand, one".