13130440323 has 32 divisors (see below), whose sum is σ = 23506248192. Its totient is φ = 6296313600.

The previous prime is 13130440319. The next prime is 13130440343. The reversal of 13130440323 is 32304403131.

It is not a de Polignac number, because 13130440323 - 2² = 13130440319 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13130440293 and 13130440302.

It is not an unprimeable number, because it can be changed into a prime (13130440303) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2183218 + ... + 2189223.

It is an arithmetic number, because the mean of its divisors is an integer number (734570256).

Almost surely, 2^13130440323 is an apocalyptic number.

13130440323 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

13130440323 is a deficient number, since it is larger than the sum of its proper divisors (10375807869).

13130440323 is a wasteful number, since it uses less digits than its factorization.

13130440323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4372475.

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 13130440323 its reverse (32304403131), we get a palindrome (45434843454).

The spelling of 13130440323 in words is "thirteen billion, one hundred thirty million, four hundred forty thousand, three hundred twenty-three".