13423131003 has 4 divisors (see below), whose sum is σ = 17897508008. Its totient is φ = 8948754000.

The previous prime is 13423130971. The next prime is 13423131017. The reversal of 13423131003 is 30013132431.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 13423131003 - 2⁵ = 13423130971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13423131103) 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, 2237188498 + ... + 2237188503.

It is an arithmetic number, because the mean of its divisors is an integer number (4474377002).

Almost surely, 2^13423131003 is an apocalyptic number.

13423131003 is a deficient number, since it is larger than the sum of its proper divisors (4474377005).

13423131003 is an equidigital number, since it uses as much as digits as its factorization.

13423131003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4474377004.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 13423131003 its reverse (30013132431), we get a palindrome (43436263434).

The spelling of 13423131003 in words is "thirteen billion, four hundred twenty-three million, one hundred thirty-one thousand, three".