130603823 has 4 divisors (see below), whose sum is σ = 149261520. Its totient is φ = 111946128.

The previous prime is 130603813. The next prime is 130603873. The reversal of 130603823 is 328306031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 328306031 = 59 ⋅5564509.

It is not a de Polignac number, because 130603823 - 2⁸ = 130603567 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 130603792 and 130603801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130603813) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 9328838 + ... + 9328851.

It is an arithmetic number, because the mean of its divisors is an integer number (37315380).

Almost surely, 2^130603823 is an apocalyptic number.

130603823 is a deficient number, since it is larger than the sum of its proper divisors (18657697).

130603823 is an equidigital number, since it uses as much as digits as its factorization.

130603823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18657696.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 130603823 is about 11428.2029645960. The cubic root of 130603823 is about 507.3628098683.

Adding to 130603823 its reverse (328306031), we get a palindrome (458909854).

The spelling of 130603823 in words is "one hundred thirty million, six hundred three thousand, eight hundred twenty-three".