103030020 has 72 divisors (see below), whose sum is σ = 315055104. Its totient is φ = 27252288.

The previous prime is 103029991. The next prime is 103030033. The reversal of 103030020 is 20030301.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 103029984 and 103030011.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20607 + ... + 25113.

Almost surely, 2^103030020 is an apocalyptic number.

103030020 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 103030020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (157527552).

103030020 is an abundant number, since it is smaller than the sum of its proper divisors (212025084).

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

103030020 is a wasteful number, since it uses less digits than its factorization.

103030020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4649 (or 4644 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 9.

The square root of 103030020 is about 10150.3704365900. The cubic root of 103030020 is about 468.8003508580.

Adding to 103030020 its reverse (20030301), we get a palindrome (123060321).

The spelling of 103030020 in words is "one hundred three million, thirty thousand, twenty".