211210031133 has 6 divisors (see below), whose sum is σ = 305081156094. Its totient is φ = 140806687416.

The previous prime is 211210031117. The next prime is 211210031161. The reversal of 211210031133 is 331130012112.

It can be written as a sum of positive squares in only one way, i.e., 145273035609 + 65936995524 = 381147^2 + 256782^2 .

It is not a de Polignac number, because 211210031133 - 2⁴ = 211210031117 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211210031233) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11733890610 + ... + 11733890627.

It is an arithmetic number, because the mean of its divisors is an integer number (50846859349).

Almost surely, 2^211210031133 is an apocalyptic number.

It is an amenable number.

211210031133 is a deficient number, since it is larger than the sum of its proper divisors (93871124961).

211210031133 is a wasteful number, since it uses less digits than its factorization.

211210031133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23467781243 (or 23467781240 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 211210031133 its reverse (331130012112), we get a palindrome (542340043245).

The spelling of 211210031133 in words is "two hundred eleven billion, two hundred ten million, thirty-one thousand, one hundred thirty-three".