2101002113 has 4 divisors (see below), whose sum is σ = 2401145280. Its totient is φ = 1800858948.

The previous prime is 2101002061. The next prime is 2101002143. The reversal of 2101002113 is 3112001012.

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 de Polignac number, because none of the positive numbers 2^k-2101002113 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2101002094 and 2101002103.

It is not an unprimeable number, because it can be changed into a prime (2101002143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 150071573 + ... + 150071586.

It is an arithmetic number, because the mean of its divisors is an integer number (600286320).

Almost surely, 2^2101002113 is an apocalyptic number.

It is an amenable number.

2101002113 is a deficient number, since it is larger than the sum of its proper divisors (300143167).

2101002113 is an equidigital number, since it uses as much as digits as its factorization.

2101002113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300143166.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 2101002113 is about 45836.6895946904. The cubic root of 2101002113 is about 1280.7828286314.

Adding to 2101002113 its reverse (3112001012), we get a palindrome (5213003125).

The spelling of 2101002113 in words is "two billion, one hundred one million, two thousand, one hundred thirteen".