231134222111 has 24 divisors (see below), whose sum is σ = 251761658544. Its totient is φ = 212094704640.

The previous prime is 231134222089. The next prime is 231134222147. The reversal of 231134222111 is 111222431132.

It is a de Polignac number, because none of the positive numbers 2^k-231134222111 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 (231134222611) 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, 56496176 + ... + 56500266.

It is an arithmetic number, because the mean of its divisors is an integer number (10490069106).

Almost surely, 2^231134222111 is an apocalyptic number.

231134222111 is a deficient number, since it is larger than the sum of its proper divisors (20627436433).

231134222111 is a wasteful number, since it uses less digits than its factorization.

231134222111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6011 (or 5998 counting only the distinct ones).

The product of its digits is 576, while the sum is 23.

Adding to 231134222111 its reverse (111222431132), we get a palindrome (342356653243).

The spelling of 231134222111 in words is "two hundred thirty-one billion, one hundred thirty-four million, two hundred twenty-two thousand, one hundred eleven".