13130403 has 32 divisors (see below), whose sum is σ = 20815872. Its totient is φ = 7257600.

The previous prime is 13130399. The next prime is 13130407. The reversal of 13130403 is 30403131.

It is an interprime number because it is at equal distance from previous prime (13130399) and next prime (13130407).

It is not a de Polignac number, because 13130403 - 2² = 13130399 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13130407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 54363 + ... + 54603.

It is an arithmetic number, because the mean of its divisors is an integer number (650496).

Almost surely, 2^13130403 is an apocalyptic number.

13130403 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

13130403 is a deficient number, since it is larger than the sum of its proper divisors (7685469).

13130403 is a wasteful number, since it uses less digits than its factorization.

13130403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395.

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 13130403 is about 3623.5897946650. The cubic root of 13130403 is about 235.9170624491.

Adding to 13130403 its reverse (30403131), we get a palindrome (43533534).

The spelling of 13130403 in words is "thirteen million, one hundred thirty thousand, four hundred three".