103030520 has 64 divisors (see below), whose sum is σ = 238140000. Its totient is φ = 40104448.

The previous prime is 103030517. The next prime is 103030531. The reversal of 103030520 is 25030301.

It is a junction number, because it is equal to n+sod(n) for n = 103030495 and 103030504.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 351494 + ... + 351786.

Almost surely, 2^103030520 is an apocalyptic number.

103030520 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 103030520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119070000).

103030520 is an abundant number, since it is smaller than the sum of its proper divisors (135109480).

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

103030520 is a wasteful number, since it uses less digits than its factorization.

103030520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 512 (or 508 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 14.

The square root of 103030520 is about 10150.3950662031. The cubic root of 103030520 is about 468.8011092124.

Adding to 103030520 its reverse (25030301), we get a palindrome (128060821).

The spelling of 103030520 in words is "one hundred three million, thirty thousand, five hundred twenty".