230121111 has 16 divisors (see below), whose sum is σ = 335651328. Its totient is φ = 139080000.

The previous prime is 230121109. The next prime is 230121121. The reversal of 230121111 is 111121032.

It is not a de Polignac number, because 230121111 - 2¹ = 230121109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230121121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2611 + ... + 21611.

It is an arithmetic number, because the mean of its divisors is an integer number (20978208).

Almost surely, 2^230121111 is an apocalyptic number.

230121111 is a deficient number, since it is larger than the sum of its proper divisors (105530217).

230121111 is a wasteful number, since it uses less digits than its factorization.

230121111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19382.

The product of its (nonzero) digits is 12, while the sum is 12.

The square root of 230121111 is about 15169.7432740307. The cubic root of 230121111 is about 612.8000904053.

Adding to 230121111 its reverse (111121032), we get a palindrome (341242143).

The spelling of 230121111 in words is "two hundred thirty million, one hundred twenty-one thousand, one hundred eleven".