230121633 has 8 divisors (see below), whose sum is σ = 350661568. Its totient is φ = 131498064.

The previous prime is 230121631. The next prime is 230121637. The reversal of 230121633 is 336121032.

230121633 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 230121633 - 2¹ = 230121631 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 10958173 = 230121633 / (2 + 3 + 0 + 1 + 2 + 1 + 6 + 3 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (230121631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5479066 + ... + 5479107.

It is an arithmetic number, because the mean of its divisors is an integer number (43832696).

Almost surely, 2^230121633 is an apocalyptic number.

It is an amenable number.

230121633 is a deficient number, since it is larger than the sum of its proper divisors (120539935).

230121633 is a wasteful number, since it uses less digits than its factorization.

230121633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10958183.

The product of its (nonzero) digits is 648, while the sum is 21.

The square root of 230121633 is about 15169.7604793220. The cubic root of 230121633 is about 612.8005537575.

Adding to 230121633 its reverse (336121032), we get a palindrome (566242665).

The spelling of 230121633 in words is "two hundred thirty million, one hundred twenty-one thousand, six hundred thirty-three".