1203136873 has 2 divisors, whose sum is σ = 1203136874. Its totient is φ = 1203136872.

The previous prime is 1203136849. The next prime is 1203136897. The reversal of 1203136873 is 3786313021.

It is a balanced prime because it is at equal distance from previous prime (1203136849) and next prime (1203136897).

It can be written as a sum of positive squares in only one way, i.e., 1199721769 + 3415104 = 34637^2 + 1848^2 .

It is a cyclic number.

It is not a de Polignac number, because 1203136873 - 2¹⁷ = 1203005801 is a prime.

It is not a weakly prime, because it can be changed into another prime (1203136073) 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, 601568436 + 601568437.

It is an arithmetic number, because the mean of its divisors is an integer number (601568437).

Almost surely, 2^1203136873 is an apocalyptic number.

It is an amenable number.

1203136873 is a deficient number, since it is larger than the sum of its proper divisors (1).

1203136873 is an equidigital number, since it uses as much as digits as its factorization.

1203136873 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 1203136873 is about 34686.2634626447. The cubic root of 1203136873 is about 1063.5837149029.

Adding to 1203136873 its reverse (3786313021), we get a palindrome (4989449894).

The spelling of 1203136873 in words is "one billion, two hundred three million, one hundred thirty-six thousand, eight hundred seventy-three".