1233056387 has 2 divisors, whose sum is σ = 1233056388. Its totient is φ = 1233056386.

The previous prime is 1233056371. The next prime is 1233056401. The reversal of 1233056387 is 7836503321.

It is a strong prime.

It is an emirp because it is prime and its reverse (7836503321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1233056387 - 2⁴ = 1233056371 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1233056387.

It is not a weakly prime, because it can be changed into another prime (1233056317) 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, 616528193 + 616528194.

It is an arithmetic number, because the mean of its divisors is an integer number (616528194).

Almost surely, 2^1233056387 is an apocalyptic number.

1233056387 is a deficient number, since it is larger than the sum of its proper divisors (1).

1233056387 is an equidigital number, since it uses as much as digits as its factorization.

1233056387 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90720, while the sum is 38.

The square root of 1233056387 is about 35114.9026340669. The cubic root of 1233056387 is about 1072.3279988169.

The spelling of 1233056387 in words is "one billion, two hundred thirty-three million, fifty-six thousand, three hundred eighty-seven".