187387306103 has 2 divisors, whose sum is σ = 187387306104. Its totient is φ = 187387306102.

The previous prime is 187387306039. The next prime is 187387306129. The reversal of 187387306103 is 301603783781.

It is a happy number.

187387306103 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 187387306103 - 2⁶ = 187387306039 is a prime.

It is a super-2 number, since 2×187387306103² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (187387306703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 93693653051 + 93693653052.

It is an arithmetic number, because the mean of its divisors is an integer number (93693653052).

Almost surely, 2^187387306103 is an apocalyptic number.

187387306103 is a deficient number, since it is larger than the sum of its proper divisors (1).

187387306103 is an equidigital number, since it uses as much as digits as its factorization.

187387306103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 508032, while the sum is 47.

The spelling of 187387306103 in words is "one hundred eighty-seven billion, three hundred eighty-seven million, three hundred six thousand, one hundred three".