103020506520 has 128 divisors (see below), whose sum is σ = 314484768000. Its totient is φ = 26990620160.

The previous prime is 103020506507. The next prime is 103020506527. The reversal of 103020506520 is 25605020301.

It is a super-2 number, since 2×103020506520² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103020506527) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16557010 + ... + 16563230.

It is an arithmetic number, because the mean of its divisors is an integer number (2456912250).

Almost surely, 2^103020506520 is an apocalyptic number.

103020506520 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 103020506520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (157242384000).

103020506520 is an abundant number, since it is smaller than the sum of its proper divisors (211464261480).

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

103020506520 is a wasteful number, since it uses less digits than its factorization.

103020506520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8633 (or 8629 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

Adding to 103020506520 its reverse (25605020301), we get a palindrome (128625526821).

The spelling of 103020506520 in words is "one hundred three billion, twenty million, five hundred six thousand, five hundred twenty".