211331069713 has 4 divisors (see below), whose sum is σ = 211332146868. Its totient is φ = 211329992560.

The previous prime is 211331069633. The next prime is 211331069731. The reversal of 211331069713 is 317960133112.

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 181670307984 + 29660761729 = 426228^2 + 172223^2 .

It is a cyclic number.

It is not a de Polignac number, because 211331069713 - 2²⁵ = 211297515281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211331069113) 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, 151606 + ... + 667567.

It is an arithmetic number, because the mean of its divisors is an integer number (52833036717).

Almost surely, 2^211331069713 is an apocalyptic number.

It is an amenable number.

211331069713 is a deficient number, since it is larger than the sum of its proper divisors (1077155).

211331069713 is an equidigital number, since it uses as much as digits as its factorization.

211331069713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1077154.

The product of its (nonzero) digits is 20412, while the sum is 37.

The spelling of 211331069713 in words is "two hundred eleven billion, three hundred thirty-one million, sixty-nine thousand, seven hundred thirteen".