211203394713 has 24 divisors (see below), whose sum is σ = 310105582280. Its totient is φ = 138479362560.

The previous prime is 211203394711. The next prime is 211203394757. The reversal of 211203394713 is 317493302112.

It can be written as a sum of positive squares in 4 ways, for example, as 753667209 + 210449727504 = 27453^2 + 458748^2 .

It is not a de Polignac number, because 211203394713 - 2¹ = 211203394711 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211203394711) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8150145 + ... + 8176017.

Almost surely, 2^211203394713 is an apocalyptic number.

It is an amenable number.

211203394713 is a deficient number, since it is larger than the sum of its proper divisors (98902187567).

211203394713 is a wasteful number, since it uses less digits than its factorization.

211203394713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40809 (or 40806 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

Adding to 211203394713 its reverse (317493302112), we get a palindrome (528696696825).

The spelling of 211203394713 in words is "two hundred eleven billion, two hundred three million, three hundred ninety-four thousand, seven hundred thirteen".