211233112231 has 8 divisors (see below), whose sum is σ = 211999456640. Its totient is φ = 210466908792.

The previous prime is 211233112229. The next prime is 211233112241. The reversal of 211233112231 is 132211332112.

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 211233112231 - 2¹ = 211233112229 is a prime.

It is a super-2 number, since 2×211233112231² (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 (211233112241) 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, 3668260 + ... + 3725398.

It is an arithmetic number, because the mean of its divisors is an integer number (26499932080).

Almost surely, 2^211233112231 is an apocalyptic number.

211233112231 is a deficient number, since it is larger than the sum of its proper divisors (766344409).

211233112231 is a wasteful number, since it uses less digits than its factorization.

211233112231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70485.

The product of its digits is 432, while the sum is 22.

Adding to 211233112231 its reverse (132211332112), we get a palindrome (343444444343).

The spelling of 211233112231 in words is "two hundred eleven billion, two hundred thirty-three million, one hundred twelve thousand, two hundred thirty-one".