230111031 has 16 divisors (see below), whose sum is σ = 329716224. Its totient is φ = 142226304.

The previous prime is 230111023. The next prime is 230111059. The reversal of 230111031 is 130111032.

It is not a de Polignac number, because 230111031 - 2³ = 230111023 is a prime.

It is a super-2 number, since 2×230111031² = 105902173175765922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 230110998 and 230111016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230111081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30255 + ... + 37088.

It is an arithmetic number, because the mean of its divisors is an integer number (20607264).

Almost surely, 2^230111031 is an apocalyptic number.

230111031 is a deficient number, since it is larger than the sum of its proper divisors (99605193).

230111031 is a wasteful number, since it uses less digits than its factorization.

230111031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67430.

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 230111031 is about 15169.4110300961. The cubic root of 230111031 is about 612.7911427761.

Adding to 230111031 its reverse (130111032), we get a palindrome (360222063).

Subtracting from 230111031 its reverse (130111032), we obtain a palindrome (99999999).

It can be divided in two parts, 23011 and 1031, that added together give a palindrome (24042).

The spelling of 230111031 in words is "two hundred thirty million, one hundred eleven thousand, thirty-one".