2001241013 has 4 divisors (see below), whose sum is σ = 2001340908. Its totient is φ = 2001141120.

The previous prime is 2001241007. The next prime is 2001241057. The reversal of 2001241013 is 3101421002.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 1142575204 + 858665809 = 33802^2 + 29303^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2001241013 is a prime.

It is a super-2 number, since 2×2001241013² = 8009931184226532338, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001241093) 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, 8348 + ... + 63813.

It is an arithmetic number, because the mean of its divisors is an integer number (500335227).

Almost surely, 2^2001241013 is an apocalyptic number.

It is an amenable number.

2001241013 is a deficient number, since it is larger than the sum of its proper divisors (99895).

2001241013 is an equidigital number, since it uses as much as digits as its factorization.

2001241013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99894.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 2001241013 is about 44735.2323454344. The cubic root of 2001241013 is about 1260.1815924132.

Adding to 2001241013 its reverse (3101421002), we get a palindrome (5102662015).

The spelling of 2001241013 in words is "two billion, one million, two hundred forty-one thousand, thirteen".