130203450 has 120 divisors (see below), whose sum is σ = 389758908. Its totient is φ = 32037120.

The previous prime is 130203439. The next prime is 130203461. The reversal of 130203450 is 54302031.

130203450 is a `hidden beast` number, since 13 + 0 + 203 + 450 = 666.

It is an interprime number because it is at equal distance from previous prime (130203439) and next prime (130203461).

It can be written as a sum of positive squares in 6 ways, for example, as 38675961 + 91527489 = 6219^2 + 9567^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 51414 + ... + 53886.

Almost surely, 2^130203450 is an apocalyptic number.

130203450 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 130203450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (194879454).

130203450 is an abundant number, since it is smaller than the sum of its proper divisors (259555458).

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

130203450 is a wasteful number, since it uses less digits than its factorization.

130203450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2510 (or 2496 counting only the distinct ones).

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

The square root of 130203450 is about 11410.6726357389. The cubic root of 130203450 is about 506.8438299157.

Adding to 130203450 its reverse (54302031), we get a palindrome (184505481).

The spelling of 130203450 in words is "one hundred thirty million, two hundred three thousand, four hundred fifty".