100505056103 has 16 divisors (see below), whose sum is σ = 104069414400. Its totient is φ = 97007314176.

The previous prime is 100505056097. The next prime is 100505056109. The reversal of 100505056103 is 301650505001.

It is an interprime number because it is at equal distance from previous prime (100505056097) and next prime (100505056109).

It is not a de Polignac number, because 100505056103 - 2¹⁸ = 100504793959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100505056109) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1251248 + ... + 1329146.

It is an arithmetic number, because the mean of its divisors is an integer number (6504338400).

Almost surely, 2^100505056103 is an apocalyptic number.

100505056103 is a deficient number, since it is larger than the sum of its proper divisors (3564358297).

100505056103 is an equidigital number, since it uses as much as digits as its factorization.

100505056103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78326.

The product of its (nonzero) digits is 2250, while the sum is 26.

The spelling of 100505056103 in words is "one hundred billion, five hundred five million, fifty-six thousand, one hundred three".