130203403 has 4 divisors (see below), whose sum is σ = 142040088. Its totient is φ = 118366720.

The previous prime is 130203373. The next prime is 130203431. The reversal of 130203403 is 304302031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 304302031 = 11 ⋅27663821.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-130203403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (130203473) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5918326 + ... + 5918347.

It is an arithmetic number, because the mean of its divisors is an integer number (35510022).

Almost surely, 2^130203403 is an apocalyptic number.

130203403 is a deficient number, since it is larger than the sum of its proper divisors (11836685).

130203403 is a wasteful number, since it uses less digits than its factorization.

130203403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11836684.

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 130203403 is about 11410.6705762633. The cubic root of 130203403 is about 506.8437689299.

Adding to 130203403 its reverse (304302031), we get a palindrome (434505434).

The spelling of 130203403 in words is "one hundred thirty million, two hundred three thousand, four hundred three".