230203981 has 16 divisors (see below), whose sum is σ = 277401600. Its totient is φ = 186619248.

The previous prime is 230203933. The next prime is 230203993. The reversal of 230203981 is 189302032.

230203981 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 230203981 - 2⁹ = 230203469 is a prime.

It is a super-2 number, since 2×230203981² = 105987745736496722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230203901) 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, 110556 + ... + 112618.

It is an arithmetic number, because the mean of its divisors is an integer number (17337600).

Almost surely, 2^230203981 is an apocalyptic number.

It is an amenable number.

230203981 is a deficient number, since it is larger than the sum of its proper divisors (47197619).

230203981 is a wasteful number, since it uses less digits than its factorization.

230203981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2928.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 230203981 is about 15172.4744521123. The cubic root of 230203981 is about 612.8736410219.

The spelling of 230203981 in words is "two hundred thirty million, two hundred three thousand, nine hundred eighty-one".