211513309147 has 16 divisors (see below), whose sum is σ = 242068619520. Its totient is φ = 181042975008.

The previous prime is 211513309127. The next prime is 211513309199. The reversal of 211513309147 is 741903315112.

It is not a de Polignac number, because 211513309147 - 2¹⁵ = 211513276379 is a prime.

It is not an unprimeable number, because it can be changed into a prime (211513309127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15945804 + ... + 15959062.

It is an arithmetic number, because the mean of its divisors is an integer number (15129288720).

Almost surely, 2^211513309147 is an apocalyptic number.

211513309147 is a deficient number, since it is larger than the sum of its proper divisors (30555310373).

211513309147 is a wasteful number, since it uses less digits than its factorization.

211513309147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16290.

The product of its (nonzero) digits is 22680, while the sum is 37.

The spelling of 211513309147 in words is "two hundred eleven billion, five hundred thirteen million, three hundred nine thousand, one hundred forty-seven".