130203423 has 16 divisors (see below), whose sum is σ = 220450560. Its totient is φ = 74401848.

The previous prime is 130203373. The next prime is 130203431. The reversal of 130203423 is 324302031.

It is not a de Polignac number, because 130203423 - 2¹⁰ = 130202399 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 130203396 and 130203405.

It is a congruent 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 15 ways as a sum of consecutive naturals, for example, 344265 + ... + 344642.

It is an arithmetic number, because the mean of its divisors is an integer number (13778160).

Almost surely, 2^130203423 is an apocalyptic number.

130203423 is a deficient number, since it is larger than the sum of its proper divisors (90247137).

130203423 is an equidigital number, since it uses as much as digits as its factorization.

130203423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 688923 (or 688917 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 130203423 is about 11410.6714526359. The cubic root of 130203423 is about 506.8437948813.

Adding to 130203423 its reverse (324302031), we get a palindrome (454505454).

The spelling of 130203423 in words is "one hundred thirty million, two hundred three thousand, four hundred twenty-three".