211527382013 has 4 divisors (see below), whose sum is σ = 211528661820. Its totient is φ = 211526102208.

The previous prime is 211527382007. The next prime is 211527382039. The reversal of 211527382013 is 310283725112.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6265830649 + 205261551364 = 79157^2 + 453058^2 .

It is a cyclic number.

It is not a de Polignac number, because 211527382013 - 2⁸ = 211527381757 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211521382013) 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, 347420 + ... + 737397.

It is an arithmetic number, because the mean of its divisors is an integer number (52882165455).

Almost surely, 2^211527382013 is an apocalyptic number.

It is an amenable number.

211527382013 is a deficient number, since it is larger than the sum of its proper divisors (1279807).

211527382013 is a wasteful number, since it uses less digits than its factorization.

211527382013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1279806.

The product of its (nonzero) digits is 20160, while the sum is 35.

The spelling of 211527382013 in words is "two hundred eleven billion, five hundred twenty-seven million, three hundred eighty-two thousand, thirteen".