230111525 has 24 divisors (see below), whose sum is σ = 329175360. Its totient is φ = 156303360.

The previous prime is 230111521. The next prime is 230111537. The reversal of 230111525 is 525111032.

It is a happy number.

It is not a de Polignac number, because 230111525 - 2² = 230111521 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 230111497 and 230111506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230111521) 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, 12581 + ... + 24869.

It is an arithmetic number, because the mean of its divisors is an integer number (13715640).

Almost surely, 2^230111525 is an apocalyptic number.

230111525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

230111525 is a deficient number, since it is larger than the sum of its proper divisors (99063835).

230111525 is a wasteful number, since it uses less digits than its factorization.

230111525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12413 (or 12408 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 230111525 is about 15169.4273128553. The cubic root of 230111525 is about 612.7915812870.

Adding to 230111525 its reverse (525111032), we get a palindrome (755222557).

The spelling of 230111525 in words is "two hundred thirty million, one hundred eleven thousand, five hundred twenty-five".