230020513 has 2 divisors, whose sum is σ = 230020514. Its totient is φ = 230020512.

The previous prime is 230020499. The next prime is 230020541. The reversal of 230020513 is 315020032.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 139523344 + 90497169 = 11812^2 + 9513^2 .

It is a cyclic number.

It is not a de Polignac number, because 230020513 - 2⁵ = 230020481 is a prime.

It is not a weakly prime, because it can be changed into another prime (230020573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115010256 + 115010257.

It is an arithmetic number, because the mean of its divisors is an integer number (115010257).

Almost surely, 2^230020513 is an apocalyptic number.

It is an amenable number.

230020513 is a deficient number, since it is larger than the sum of its proper divisors (1).

230020513 is an equidigital number, since it uses as much as digits as its factorization.

230020513 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 230020513 is about 15166.4271666072. The cubic root of 230020513 is about 612.7107817098.

Adding to 230020513 its reverse (315020032), we get a palindrome (545040545).

The spelling of 230020513 in words is "two hundred thirty million, twenty thousand, five hundred thirteen".