13031227506 has 64 divisors (see below), whose sum is σ = 29227309056. Its totient is φ = 3838564800.

The previous prime is 13031227477. The next prime is 13031227571. The reversal of 13031227506 is 60572213031.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 3864001 + ... + 3867371.

It is an arithmetic number, because the mean of its divisors is an integer number (456676704).

Almost surely, 2^13031227506 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13031227506, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14613654528).

13031227506 is an abundant number, since it is smaller than the sum of its proper divisors (16196081550).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13031227506 is a wasteful number, since it uses less digits than its factorization.

13031227506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5007.

The product of its (nonzero) digits is 7560, while the sum is 30.

The spelling of 13031227506 in words is "thirteen billion, thirty-one million, two hundred twenty-seven thousand, five hundred six".