1230501443 has 2 divisors, whose sum is σ = 1230501444. Its totient is φ = 1230501442.

The previous prime is 1230501401. The next prime is 1230501487. The reversal of 1230501443 is 3441050321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1230501443 - 2⁸ = 1230501187 is a prime.

It is not a weakly prime, because it can be changed into another prime (1230501343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615250721 + 615250722.

It is an arithmetic number, because the mean of its divisors is an integer number (615250722).

Almost surely, 2^1230501443 is an apocalyptic number.

1230501443 is a deficient number, since it is larger than the sum of its proper divisors (1).

1230501443 is an equidigital number, since it uses as much as digits as its factorization.

1230501443 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 1230501443 is about 35078.5040017387. The cubic root of 1230501443 is about 1071.5868506476.

Adding to 1230501443 its reverse (3441050321), we get a palindrome (4671551764).

The spelling of 1230501443 in words is "one billion, two hundred thirty million, five hundred one thousand, four hundred forty-three".