11965403 has 2 divisors, whose sum is σ = 11965404. Its totient is φ = 11965402.

The previous prime is 11965379. The next prime is 11965423. The reversal of 11965403 is 30456911.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11965403 - 2⁶ = 11965339 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (11965423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5982701 + 5982702.

It is an arithmetic number, because the mean of its divisors is an integer number (5982702).

Almost surely, 2^11965403 is an apocalyptic number.

11965403 is a deficient number, since it is larger than the sum of its proper divisors (1).

11965403 is an equidigital number, since it uses as much as digits as its factorization.

11965403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 11965403 is about 3459.1043638491. The cubic root of 11965403 is about 228.7226162886.

The spelling of 11965403 in words is "eleven million, nine hundred sixty-five thousand, four hundred three".