13004640031 has 4 divisors (see below), whose sum is σ = 13004924464. Its totient is φ = 13004355600.

The previous prime is 13004639983. The next prime is 13004640049.

13004640031 is nontrivially palindromic in base 10.

13004640031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 13004640031 - 2⁹ = 13004639519 is a prime.

It is a super-2 number, since 2×13004640031² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13004639984 and 13004640011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13004640091) 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, 56355 + ... + 170836.

It is an arithmetic number, because the mean of its divisors is an integer number (3251231116).

Almost surely, 2^13004640031 is an apocalyptic number.

13004640031 is a deficient number, since it is larger than the sum of its proper divisors (284433).

13004640031 is an equidigital number, since it uses as much as digits as its factorization.

13004640031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284432.

The product of its (nonzero) digits is 864, while the sum is 22.

The spelling of 13004640031 in words is "thirteen billion, four million, six hundred forty thousand, thirty-one".