230021020 has 12 divisors (see below), whose sum is σ = 483044184. Its totient is φ = 92008400.

The previous prime is 230020997. The next prime is 230021027. The reversal of 230021020 is 20120032.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 230020988 and 230021006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230021027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5750506 + ... + 5750545.

It is an arithmetic number, because the mean of its divisors is an integer number (40253682).

Almost surely, 2^230021020 is an apocalyptic number.

230021020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

230021020 is an abundant number, since it is smaller than the sum of its proper divisors (253023164).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

230021020 is a wasteful number, since it uses less digits than its factorization.

230021020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11501060 (or 11501058 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 230021020 is about 15166.4438811476. The cubic root of 230021020 is about 612.7112318786.

Adding to 230021020 its reverse (20120032), we get a palindrome (250141052).

The spelling of 230021020 in words is "two hundred thirty million, twenty-one thousand, twenty".