2101331013 has 4 divisors (see below), whose sum is σ = 2801774688. Its totient is φ = 1400887340.

The previous prime is 2101330999. The next prime is 2101331017. The reversal of 2101331013 is 3101331012.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2101331013 - 2⁴ = 2101330997 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2101330983 and 2101331001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101331017) 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, 350221833 + ... + 350221838.

It is an arithmetic number, because the mean of its divisors is an integer number (700443672).

Almost surely, 2^2101331013 is an apocalyptic number.

It is an amenable number.

2101331013 is a deficient number, since it is larger than the sum of its proper divisors (700443675).

2101331013 is an equidigital number, since it uses as much as digits as its factorization.

2101331013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 700443674.

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 2101331013 is about 45840.2771915703. The cubic root of 2101331013 is about 1280.8496582473.

Adding to 2101331013 its reverse (3101331012), we get a palindrome (5202662025).

Subtracting 2101331013 from its reverse (3101331012), we obtain a palindrome (999999999).

The spelling of 2101331013 in words is "two billion, one hundred one million, three hundred thirty-one thousand, thirteen".