230111856 has 120 divisors (see below), whose sum is σ = 702361296. Its totient is φ = 69903360.

The previous prime is 230111851. The next prime is 230111857. The reversal of 230111856 is 658111032.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230111851) 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, 154636 + ... + 156116.

Almost surely, 2^230111856 is an apocalyptic number.

230111856 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 230111856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (351180648).

230111856 is an abundant number, since it is smaller than the sum of its proper divisors (472249440).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

230111856 is a wasteful number, since it uses less digits than its factorization.

230111856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1591 (or 1582 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 230111856 is about 15169.4382229534. The cubic root of 230111856 is about 612.7918751067.

Adding to 230111856 its reverse (658111032), we get a palindrome (888222888).

The spelling of 230111856 in words is "two hundred thirty million, one hundred eleven thousand, eight hundred fifty-six".