230021121 has 12 divisors (see below), whose sum is σ = 337111376. Its totient is φ = 139406520.

The previous prime is 230021089. The next prime is 230021131. The reversal of 230021121 is 121120032.

It is not a de Polignac number, because 230021121 - 2⁵ = 230021089 is a prime.

It is a super-2 number, since 2×230021121² = 105819432212193282, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 230021097 and 230021106.

It is not an unprimeable number, because it can be changed into a prime (230021131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 316471 + ... + 317196.

Almost surely, 2^230021121 is an apocalyptic number.

It is an amenable number.

230021121 is a deficient number, since it is larger than the sum of its proper divisors (107090255).

230021121 is a wasteful number, since it uses less digits than its factorization.

230021121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 633692 (or 633681 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 230021121 is about 15166.4472108665. The cubic root of 230021121 is about 612.7113215571.

Adding to 230021121 its reverse (121120032), we get a palindrome (351141153).

The spelling of 230021121 in words is "two hundred thirty million, twenty-one thousand, one hundred twenty-one".