1230551234789 has 2 divisors, whose sum is σ = 1230551234790. Its totient is φ = 1230551234788.

The previous prime is 1230551234747. The next prime is 1230551234819. The reversal of 1230551234789 is 9874321550321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 758902322500 + 471648912289 = 871150^2 + 686767^2 .

It is an emirp because it is prime and its reverse (9874321550321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1230551234789 - 2³⁶ = 1161831758053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1230551234729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615275617394 + 615275617395.

It is an arithmetic number, because the mean of its divisors is an integer number (615275617395).

Almost surely, 2^{1230551234789} is an apocalyptic number.

It is an amenable number.

1230551234789 is a deficient number, since it is larger than the sum of its proper divisors (1).

1230551234789 is an equidigital number, since it uses as much as digits as its factorization.

1230551234789 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1814400, while the sum is 50.

The spelling of 1230551234789 in words is "one trillion, two hundred thirty billion, five hundred fifty-one million, two hundred thirty-four thousand, seven hundred eighty-nine".