130320503 has 4 divisors (see below), whose sum is σ = 131315448. Its totient is φ = 129325560.

The previous prime is 130320499. The next prime is 130320511. The reversal of 130320503 is 305023031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 305023031 = 13921 ⋅21911.

It is a cyclic number.

It is not a de Polignac number, because 130320503 - 2² = 130320499 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130320703) 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, 497276 + ... + 497537.

It is an arithmetic number, because the mean of its divisors is an integer number (32828862).

Almost surely, 2^130320503 is an apocalyptic number.

130320503 is a deficient number, since it is larger than the sum of its proper divisors (994945).

130320503 is an equidigital number, since it uses as much as digits as its factorization.

130320503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 994944.

The product of its (nonzero) digits is 270, while the sum is 17.

The square root of 130320503 is about 11415.8005851539. The cubic root of 130320503 is about 506.9956687525.

Adding to 130320503 its reverse (305023031), we get a palindrome (435343534).

The spelling of 130320503 in words is "one hundred thirty million, three hundred twenty thousand, five hundred three".