10203030 has 128 divisors (see below), whose sum is σ = 29859840. Its totient is φ = 2471040.

The previous prime is 10203023. The next prime is 10203031. The reversal of 10203030 is 3030201.

It is a happy number.

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

10203030 is a modest number, since divided by 3030 gives 1020 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10203031) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 192484 + ... + 192536.

It is an arithmetic number, because the mean of its divisors is an integer number (233280).

Almost surely, 2^10203030 is an apocalyptic number.

10203030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 10203030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14929920).

10203030 is an abundant number, since it is smaller than the sum of its proper divisors (19656810).

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

10203030 is a wasteful number, since it uses less digits than its factorization.

10203030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123 (or 117 counting only the distinct ones).

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

The square root of 10203030 is about 3194.2182142114. The cubic root of 10203030 is about 216.8917608099.

Adding to 10203030 its reverse (3030201), we get a palindrome (13233231).

The spelling of 10203030 in words is "ten million, two hundred three thousand, thirty".