1203965671 has 2 divisors, whose sum is σ = 1203965672. Its totient is φ = 1203965670.

The previous prime is 1203965669. The next prime is 1203965689. The reversal of 1203965671 is 1765693021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1203965671 - 2¹ = 1203965669 is a prime.

It is a super-3 number, since 3×1203965671³ (a number of 28 digits) contains 333 as substring.

Together with 1203965669, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1203965611) 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, 601982835 + 601982836.

It is an arithmetic number, because the mean of its divisors is an integer number (601982836).

Almost surely, 2^1203965671 is an apocalyptic number.

1203965671 is a deficient number, since it is larger than the sum of its proper divisors (1).

1203965671 is an equidigital number, since it uses as much as digits as its factorization.

1203965671 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 68040, while the sum is 40.

The square root of 1203965671 is about 34698.2084696026. The cubic root of 1203965671 is about 1063.8278804511.

The spelling of 1203965671 in words is "one billion, two hundred three million, nine hundred sixty-five thousand, six hundred seventy-one".