231045111 has 48 divisors (see below), whose sum is σ = 386979840. Its totient is φ = 131362560.

The previous prime is 231045109. The next prime is 231045119. The reversal of 231045111 is 111540132.

It is not a de Polignac number, because 231045111 - 2¹ = 231045109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231045119) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 212010 + ... + 213096.

It is an arithmetic number, because the mean of its divisors is an integer number (8062080).

Almost surely, 2^231045111 is an apocalyptic number.

231045111 is a deficient number, since it is larger than the sum of its proper divisors (155934729).

231045111 is a wasteful number, since it uses less digits than its factorization.

231045111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1236 (or 1233 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 231045111 is about 15200.1681240702. The cubic root of 231045111 is about 613.6191824535.

Adding to 231045111 its reverse (111540132), we get a palindrome (342585243).

The spelling of 231045111 in words is "two hundred thirty-one million, forty-five thousand, one hundred eleven".