100245505503 has 128 divisors (see below), whose sum is σ = 167834419200. Its totient is φ = 52320038400.

The previous prime is 100245505487. The next prime is 100245505513. The reversal of 100245505503 is 305505542001.

It is a happy number.

It is not a de Polignac number, because 100245505503 - 2⁴ = 100245505487 is a prime.

It is a super-2 number, since 2×100245505503² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100245505513) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 185296413 + ... + 185296953.

It is an arithmetic number, because the mean of its divisors is an integer number (1311206400).

Almost surely, 2^100245505503 is an apocalyptic number.

100245505503 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

100245505503 is a deficient number, since it is larger than the sum of its proper divisors (67588913697).

100245505503 is a wasteful number, since it uses less digits than its factorization.

100245505503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 893.

The product of its (nonzero) digits is 15000, while the sum is 30.

The spelling of 100245505503 in words is "one hundred billion, two hundred forty-five million, five hundred five thousand, five hundred three".