211043533013 has 4 divisors (see below), whose sum is σ = 211284176460. Its totient is φ = 210802889568.

The previous prime is 211043532983. The next prime is 211043533021. The reversal of 211043533013 is 310335340112.

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 128319419089 + 82724113924 = 358217^2 + 287618^2 .

It is a cyclic number.

It is not a de Polignac number, because 211043533013 - 2¹⁰ = 211043531989 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 (211043533073) 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, 120320408 + ... + 120322161.

It is an arithmetic number, because the mean of its divisors is an integer number (52821044115).

Almost surely, 2^211043533013 is an apocalyptic number.

It is an amenable number.

211043533013 is a deficient number, since it is larger than the sum of its proper divisors (240643447).

211043533013 is an equidigital number, since it uses as much as digits as its factorization.

211043533013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240643446.

The product of its (nonzero) digits is 3240, while the sum is 26.

Adding to 211043533013 its reverse (310335340112), we get a palindrome (521378873125).

The spelling of 211043533013 in words is "two hundred eleven billion, forty-three million, five hundred thirty-three thousand, thirteen".