211231133301 has 24 divisors (see below), whose sum is σ = 288803470720. Its totient is φ = 137326567680.

The previous prime is 211231133297. The next prime is 211231133327. The reversal of 211231133301 is 103331132112.

It is a happy number.

It is not a de Polignac number, because 211231133301 - 2² = 211231133297 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 (211231133341) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13673940 + ... + 13689378.

Almost surely, 2^211231133301 is an apocalyptic number.

It is an amenable number.

211231133301 is a deficient number, since it is larger than the sum of its proper divisors (77572337419).

211231133301 is a wasteful number, since it uses less digits than its factorization.

211231133301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18237 (or 18196 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 211231133301 its reverse (103331132112), we get a palindrome (314562265413).

The spelling of 211231133301 in words is "two hundred eleven billion, two hundred thirty-one million, one hundred thirty-three thousand, three hundred one".