103130500500 has 144 divisors (see below), whose sum is σ = 331481653776. Its totient is φ = 26982508800.

The previous prime is 103130500489. The next prime is 103130500507. The reversal of 103130500500 is 5005031301.

It is a happy number.

103130500500 is a `hidden beast` number, since 103 + 13 + 0 + 50 + 0 + 500 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 21051688464 + 82078812036 = 145092^2 + 286494^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103130500507) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 22294 + ... + 454706.

It is an arithmetic number, because the mean of its divisors is an integer number (2301955929).

Almost surely, 2^103130500500 is an apocalyptic number.

103130500500 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 103130500500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (165740826888).

103130500500 is an abundant number, since it is smaller than the sum of its proper divisors (228351153276).

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

103130500500 is a wasteful number, since it uses less digits than its factorization.

103130500500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432491 (or 432476 counting only the distinct ones).

The product of its (nonzero) digits is 225, while the sum is 18.

Adding to 103130500500 its reverse (5005031301), we get a palindrome (108135531801).

The spelling of 103130500500 in words is "one hundred three billion, one hundred thirty million, five hundred thousand, five hundred".