11321903 has 2 divisors, whose sum is σ = 11321904. Its totient is φ = 11321902.

The previous prime is 11321899. The next prime is 11321917. The reversal of 11321903 is 30912311.

11321903 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11321903 - 2² = 11321899 is a prime.

It is a Sophie Germain prime.

It is a nialpdrome in base 15.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11321993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5660951 + 5660952.

It is an arithmetic number, because the mean of its divisors is an integer number (5660952).

Almost surely, 2^11321903 is an apocalyptic number.

11321903 is a deficient number, since it is larger than the sum of its proper divisors (1).

11321903 is an equidigital number, since it uses as much as digits as its factorization.

11321903 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 162, while the sum is 20.

The square root of 11321903 is about 3364.8035603880. The cubic root of 11321903 is about 224.5465964129.

The spelling of 11321903 in words is "eleven million, three hundred twenty-one thousand, nine hundred three".