230121123 has 4 divisors (see below), whose sum is σ = 306828168. Its totient is φ = 153414080.

The previous prime is 230121121. The next prime is 230121137. The reversal of 230121123 is 321121032.

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

It is a cyclic number.

It is not a de Polignac number, because 230121123 - 2¹ = 230121121 is a prime.

It is a super-2 number, since 2×230121123² = 105911462501562258, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (230121121) 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, 38353518 + ... + 38353523.

It is an arithmetic number, because the mean of its divisors is an integer number (76707042).

Almost surely, 2^230121123 is an apocalyptic number.

230121123 is a deficient number, since it is larger than the sum of its proper divisors (76707045).

230121123 is an equidigital number, since it uses as much as digits as its factorization.

230121123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76707044.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 230121123 is about 15169.7436695549. The cubic root of 230121123 is about 612.8001010570.

Adding to 230121123 its reverse (321121032), we get a palindrome (551242155).

Subtracting 230121123 from its reverse (321121032), we obtain a palindrome (90999909).

The spelling of 230121123 in words is "two hundred thirty million, one hundred twenty-one thousand, one hundred twenty-three".