18870225103 has 2 divisors, whose sum is σ = 18870225104. Its totient is φ = 18870225102.

The previous prime is 18870225037. The next prime is 18870225167. The reversal of 18870225103 is 30152207881.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18870225103 - 2⁹ = 18870224591 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18870225503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9435112551 + 9435112552.

It is an arithmetic number, because the mean of its divisors is an integer number (9435112552).

Almost surely, 2^18870225103 is an apocalyptic number.

18870225103 is a deficient number, since it is larger than the sum of its proper divisors (1).

18870225103 is an equidigital number, since it uses as much as digits as its factorization.

18870225103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26880, while the sum is 37.

The spelling of 18870225103 in words is "eighteen billion, eight hundred seventy million, two hundred twenty-five thousand, one hundred three".