211531354513 has 8 divisors (see below), whose sum is σ = 213856530368. Its totient is φ = 209211399504.

The previous prime is 211531354471. The next prime is 211531354523. The reversal of 211531354513 is 315453135112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 211531354513 - 2³⁷ = 74092401041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211531354523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1223706 + ... + 1385827.

It is an arithmetic number, because the mean of its divisors is an integer number (26732066296).

Almost surely, 2^211531354513 is an apocalyptic number.

It is an amenable number.

211531354513 is a deficient number, since it is larger than the sum of its proper divisors (2325175855).

211531354513 is a wasteful number, since it uses less digits than its factorization.

211531354513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2610423.

The product of its digits is 27000, while the sum is 34.

Adding to 211531354513 its reverse (315453135112), we get a palindrome (526984489625).

The spelling of 211531354513 in words is "two hundred eleven billion, five hundred thirty-one million, three hundred fifty-four thousand, five hundred thirteen".