230143121 has 4 divisors (see below), whose sum is σ = 247846452. Its totient is φ = 212439792.

The previous prime is 230143117. The next prime is 230143141. The reversal of 230143121 is 121341032.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 24364096 + 205779025 = 4936^2 + 14345^2 .

It is a cyclic number.

It is not a de Polignac number, because 230143121 - 2² = 230143117 is a prime.

It is a super-2 number, since 2×230143121² = 105931712287241282, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 230143121.

It is not an unprimeable number, because it can be changed into a prime (230143141) 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, 8851646 + ... + 8851671.

It is an arithmetic number, because the mean of its divisors is an integer number (61961613).

Almost surely, 2^230143121 is an apocalyptic number.

It is an amenable number.

230143121 is a deficient number, since it is larger than the sum of its proper divisors (17703331).

230143121 is a wasteful number, since it uses less digits than its factorization.

230143121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17703330.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 230143121 is about 15170.4687139192. The cubic root of 230143121 is about 612.8196269295.

Adding to 230143121 its reverse (121341032), we get a palindrome (351484153).

The spelling of 230143121 in words is "two hundred thirty million, one hundred forty-three thousand, one hundred twenty-one".