211101233231 has 8 divisors (see below), whose sum is σ = 249041086464. Its totient is φ = 175107013560.

The previous prime is 211101233191. The next prime is 211101233249. The reversal of 211101233231 is 132332101112.

It is a happy number.

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 211101233231 - 2¹⁰ = 211101232207 is a prime.

It is a super-2 number, since 2×211101233231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211101223231) 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, 486408155 + ... + 486408588.

It is an arithmetic number, because the mean of its divisors is an integer number (31130135808).

Almost surely, 2^211101233231 is an apocalyptic number.

211101233231 is a deficient number, since it is larger than the sum of its proper divisors (37939853233).

211101233231 is an equidigital number, since it uses as much as digits as its factorization.

211101233231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 972816781.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 211101233231 its reverse (132332101112), we get a palindrome (343433334343).

The spelling of 211101233231 in words is "two hundred eleven billion, one hundred one million, two hundred thirty-three thousand, two hundred thirty-one".