13031707838 has 8 divisors (see below), whose sum is σ = 19603895832. Its totient is φ = 6497075896.

The previous prime is 13031707837. The next prime is 13031707879. The reversal of 13031707838 is 83870713031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 13031707795 and 13031707804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13031707837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9388145 + ... + 9389532.

It is an arithmetic number, because the mean of its divisors is an integer number (2450486979).

Almost surely, 2^13031707838 is an apocalyptic number.

13031707838 is a deficient number, since it is larger than the sum of its proper divisors (6572187994).

13031707838 is a wasteful number, since it uses less digits than its factorization.

13031707838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18778026.

The product of its (nonzero) digits is 84672, while the sum is 41.

The spelling of 13031707838 in words is "thirteen billion, thirty-one million, seven hundred seven thousand, eight hundred thirty-eight".