103505000520 has 128 divisors (see below), whose sum is σ = 315705600000. Its totient is φ = 27142752000.

The previous prime is 103505000447. The next prime is 103505000551. The reversal of 103505000520 is 25000505301.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2357731 + ... + 2401229.

It is an arithmetic number, because the mean of its divisors is an integer number (2466450000).

Almost surely, 2^103505000520 is an apocalyptic number.

103505000520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 103505000520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (157852800000).

103505000520 is an abundant number, since it is smaller than the sum of its proper divisors (212200599480).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

103505000520 is a wasteful number, since it uses less digits than its factorization.

103505000520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43843 (or 43839 counting only the distinct ones).

The product of its (nonzero) digits is 750, while the sum is 21.

Adding to 103505000520 its reverse (25000505301), we get a palindrome (128505505821).

The spelling of 103505000520 in words is "one hundred three billion, five hundred five million, five hundred twenty", and thus it is an aban number.