230121409 has 16 divisors (see below), whose sum is σ = 273611520. Its totient is φ = 189362880.

The previous prime is 230121403. The next prime is 230121431. The reversal of 230121409 is 904121032.

It is not a de Polignac number, because 230121409 - 2⁵ = 230121377 is a prime.

It is a super-3 number, since 3×230121409³ (a number of 26 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 230121409.

It is not an unprimeable number, because it can be changed into a prime (230121403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33612 + ... + 39874.

It is an arithmetic number, because the mean of its divisors is an integer number (17100720).

Almost surely, 2^230121409 is an apocalyptic number.

230121409 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

230121409 is a deficient number, since it is larger than the sum of its proper divisors (43490111).

230121409 is a wasteful number, since it uses less digits than its factorization.

230121409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6480.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 230121409 is about 15169.7530962109. The cubic root of 230121409 is about 612.8003549244.

The spelling of 230121409 in words is "two hundred thirty million, one hundred twenty-one thousand, four hundred nine".