211333133231 has 8 divisors (see below), whose sum is σ = 240568942464. Its totient is φ = 183767941720.

The previous prime is 211333133227. The next prime is 211333133233. The reversal of 211333133231 is 132331333112.

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

It is not a de Polignac number, because 211333133231 - 2² = 211333133227 is a prime.

It is a super-2 number, since 2×211333133231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 211333133231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211333133233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 417654161 + ... + 417654666.

It is an arithmetic number, because the mean of its divisors is an integer number (30071117808).

Almost surely, 2^211333133231 is an apocalyptic number.

211333133231 is a deficient number, since it is larger than the sum of its proper divisors (29235809233).

211333133231 is a wasteful number, since it uses less digits than its factorization.

211333133231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 835308861.

The product of its digits is 2916, while the sum is 26.

Adding to 211333133231 its reverse (132331333112), we get a palindrome (343664466343).

The spelling of 211333133231 in words is "two hundred eleven billion, three hundred thirty-three million, one hundred thirty-three thousand, two hundred thirty-one".