230511121 has 4 divisors (see below), whose sum is σ = 231429744. Its totient is φ = 229592500.

The previous prime is 230511119. The next prime is 230511139. The reversal of 230511121 is 121115032.

230511121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 230511121 - 2¹ = 230511119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 230511095 and 230511104.

It is not an unprimeable number, because it can be changed into a prime (230511101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 458935 + ... + 459436.

It is an arithmetic number, because the mean of its divisors is an integer number (57857436).

Almost surely, 2^230511121 is an apocalyptic number.

It is an amenable number.

230511121 is a deficient number, since it is larger than the sum of its proper divisors (918623).

230511121 is an equidigital number, since it uses as much as digits as its factorization.

230511121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 918622.

The product of its (nonzero) digits is 60, while the sum is 16.

The square root of 230511121 is about 15182.5926969013. The cubic root of 230511121 is about 613.1460868691.

Adding to 230511121 its reverse (121115032), we get a palindrome (351626153).

The spelling of 230511121 in words is "two hundred thirty million, five hundred eleven thousand, one hundred twenty-one".