28103165903 has 2 divisors, whose sum is σ = 28103165904. Its totient is φ = 28103165902.

The previous prime is 28103165897. The next prime is 28103165929. The reversal of 28103165903 is 30956130182.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28103165903 - 2⁴ = 28103165887 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28103165983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14051582951 + 14051582952.

It is an arithmetic number, because the mean of its divisors is an integer number (14051582952).

Almost surely, 2^28103165903 is an apocalyptic number.

28103165903 is a deficient number, since it is larger than the sum of its proper divisors (1).

28103165903 is an equidigital number, since it uses as much as digits as its factorization.

28103165903 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 38880, while the sum is 38.

The spelling of 28103165903 in words is "twenty-eight billion, one hundred three million, one hundred sixty-five thousand, nine hundred three".