231304433211 has 12 divisors (see below), whose sum is σ = 334206389088. Its totient is φ = 154156808304.

The previous prime is 231304433189. The next prime is 231304433219. The reversal of 231304433211 is 112334403132.

It is a happy number.

231304433211 is a `hidden beast` number, since 2 + 3 + 1 + 3 + 0 + 443 + 3 + 211 = 666.

It is not a de Polignac number, because 231304433211 - 2⁶ = 231304433147 is a prime.

It is not an unprimeable number, because it can be changed into a prime (231304433219) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3813840 + ... + 3874013.

It is an arithmetic number, because the mean of its divisors is an integer number (27850532424).

Almost surely, 2^231304433211 is an apocalyptic number.

231304433211 is a deficient number, since it is larger than the sum of its proper divisors (102901955877).

231304433211 is a wasteful number, since it uses less digits than its factorization.

231304433211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7691202 (or 7691199 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 231304433211 its reverse (112334403132), we get a palindrome (343638836343).

The spelling of 231304433211 in words is "two hundred thirty-one billion, three hundred four million, four hundred thirty-three thousand, two hundred eleven".