230820031543 has 2 divisors, whose sum is σ = 230820031544. Its totient is φ = 230820031542.

The previous prime is 230820031531. The next prime is 230820031553. The reversal of 230820031543 is 345130028032.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 230820031543 - 2⁵ = 230820031511 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (230820031553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115410015771 + 115410015772.

It is an arithmetic number, because the mean of its divisors is an integer number (115410015772).

Almost surely, 2^230820031543 is an apocalyptic number.

230820031543 is a deficient number, since it is larger than the sum of its proper divisors (1).

230820031543 is an equidigital number, since it uses as much as digits as its factorization.

230820031543 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17280, while the sum is 31.

Adding to 230820031543 its reverse (345130028032), we get a palindrome (575950059575).

The spelling of 230820031543 in words is "two hundred thirty billion, eight hundred twenty million, thirty-one thousand, five hundred forty-three".