211055332135 has 4 divisors (see below), whose sum is σ = 253266398568. Its totient is φ = 168844265704.

The previous prime is 211055332123. The next prime is 211055332249. The reversal of 211055332135 is 531233550112.

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

It is a cyclic number.

It is not a de Polignac number, because 211055332135 - 2⁹ = 211055331623 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211055332097 and 211055332106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21105533209 + ... + 21105533218.

It is an arithmetic number, because the mean of its divisors is an integer number (63316599642).

Almost surely, 2^211055332135 is an apocalyptic number.

211055332135 is a deficient number, since it is larger than the sum of its proper divisors (42211066433).

211055332135 is an equidigital number, since it uses as much as digits as its factorization.

211055332135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42211066432.

The product of its (nonzero) digits is 13500, while the sum is 31.

Adding to 211055332135 its reverse (531233550112), we get a palindrome (742288882247).

The spelling of 211055332135 in words is "two hundred eleven billion, fifty-five million, three hundred thirty-two thousand, one hundred thirty-five".