30203100 has 108 divisors (see below), whose sum is σ = 97335784. Its totient is φ = 7827840.

The previous prime is 30203099. The next prime is 30203153. The reversal of 30203100 is 130203.

It is a happy number.

It is a super-2 number, since 2×30203100² = 1824454499220000, which contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 32847 + ... + 33753.

Almost surely, 2^30203100 is an apocalyptic number.

30203100 is a gapful number since it is divisible by the number (30) 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 30203100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48667892).

30203100 is an abundant number, since it is smaller than the sum of its proper divisors (67132684).

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

30203100 is a wasteful number, since it uses less digits than its factorization.

30203100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 964 (or 954 counting only the distinct ones).

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

The square root of 30203100 is about 5495.7347097545. The cubic root of 30203100 is about 311.4228729503.

Adding to 30203100 its reverse (130203), we get a palindrome (30333303).

It can be divided in two parts, 30203 and 100, that added together give a palindrome (30303).

The spelling of 30203100 in words is "thirty million, two hundred three thousand, one hundred".