231023330211 has 32 divisors (see below), whose sum is σ = 319481003520. Its totient is φ = 148385888000.

The previous prime is 231023330149. The next prime is 231023330281. The reversal of 231023330211 is 112033320132.

It is not a de Polignac number, because 231023330211 - 2⁹ = 231023329699 is a prime.

It is not an unprimeable number, because it can be changed into a prime (231023330281) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43171186 + ... + 43176536.

It is an arithmetic number, because the mean of its divisors is an integer number (9983781360).

Almost surely, 2^231023330211 is an apocalyptic number.

231023330211 is a deficient number, since it is larger than the sum of its proper divisors (88457673309).

231023330211 is a wasteful number, since it uses less digits than its factorization.

231023330211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9707.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 231023330211 its reverse (112033320132), we get a palindrome (343056650343).

The spelling of 231023330211 in words is "two hundred thirty-one billion, twenty-three million, three hundred thirty thousand, two hundred eleven".