103430520 has 112 divisors (see below), whose sum is σ = 349016760. Its totient is φ = 27573696.

The previous prime is 103430497. The next prime is 103430527. The reversal of 103430520 is 25034301.

103430520 is a `hidden beast` number, since 103 + 43 + 0 + 520 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 103430493 and 103430502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103430527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 27387 + ... + 30933.

Almost surely, 2^103430520 is an apocalyptic number.

103430520 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 103430520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (174508380).

103430520 is an abundant number, since it is smaller than the sum of its proper divisors (245586240).

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

103430520 is an equidigital number, since it uses as much as digits as its factorization.

103430520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3576 (or 3557 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 103430520 is about 10170.0796457058. The cubic root of 103430520 is about 469.4070082953.

Adding to 103430520 its reverse (25034301), we get a palindrome (128464821).

The spelling of 103430520 in words is "one hundred three million, four hundred thirty thousand, five hundred twenty".