211133121331 has 8 divisors (see below), whose sum is σ = 230357813184. Its totient is φ = 191913558120.

The previous prime is 211133121299. The next prime is 211133121343. The reversal of 211133121331 is 133121331112.

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 211133121331 - 2⁵ = 211133121299 is a prime.

It is a super-2 number, since 2×211133121331² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211133101331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1195825 + ... + 1360978.

It is an arithmetic number, because the mean of its divisors is an integer number (28794726648).

Almost surely, 2^211133121331 is an apocalyptic number.

211133121331 is a deficient number, since it is larger than the sum of its proper divisors (19224691853).

211133121331 is a wasteful number, since it uses less digits than its factorization.

211133121331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2564321.

The product of its digits is 324, while the sum is 22.

Adding to 211133121331 its reverse (133121331112), we get a palindrome (344254452443).

The spelling of 211133121331 in words is "two hundred eleven billion, one hundred thirty-three million, one hundred twenty-one thousand, three hundred thirty-one".