201000002113 has 4 divisors (see below), whose sum is σ = 201516712020. Its totient is φ = 200483292208.

The previous prime is 201000002051. The next prime is 201000002179. The reversal of 201000002113 is 311200000102.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 311200000102 = 2 ⋅155600000051.

It can be written as a sum of positive squares in 2 ways, for example, as 60425997489 + 140574004624 = 245817^2 + 374932^2 .

It is a cyclic number.

It is not a de Polignac number, because 201000002113 - 2²⁹ = 200463131201 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 201000002113.

It is not an unprimeable number, because it can be changed into a prime (201000002513) 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, 258354370 + ... + 258355147.

It is an arithmetic number, because the mean of its divisors is an integer number (50379178005).

Almost surely, 2^201000002113 is an apocalyptic number.

It is an amenable number.

201000002113 is a deficient number, since it is larger than the sum of its proper divisors (516709907).

201000002113 is an equidigital number, since it uses as much as digits as its factorization.

201000002113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516709906.

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 201000002113 its reverse (311200000102), we get a palindrome (512200002215).

The spelling of 201000002113 in words is "two hundred one billion, two thousand, one hundred thirteen".