103500005251 has 4 divisors (see below), whose sum is σ = 109588240872. Its totient is φ = 97411769632.

The previous prime is 103500005249. The next prime is 103500005393. The reversal of 103500005251 is 152500005301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 152500005301 = 7 ⋅21785715043.

It is not a de Polignac number, because 103500005251 - 2¹ = 103500005249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103500005551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3044117785 + ... + 3044117818.

It is an arithmetic number, because the mean of its divisors is an integer number (27397060218).

Almost surely, 2^103500005251 is an apocalyptic number.

103500005251 is a deficient number, since it is larger than the sum of its proper divisors (6088235621).

103500005251 is an equidigital number, since it uses as much as digits as its factorization.

103500005251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6088235620.

The product of its (nonzero) digits is 750, while the sum is 22.

The spelling of 103500005251 in words is "one hundred three billion, five hundred million, five thousand, two hundred fifty-one".