13122256156 has 24 divisors (see below), whose sum is σ = 23188984560. Its totient is φ = 6496887552.

The previous prime is 13122256153. The next prime is 13122256177. The reversal of 13122256156 is 65165222131.

13122256156 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13122256153) 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 7 ways as a sum of consecutive naturals, for example, 1188196 + ... + 1199188.

It is an arithmetic number, because the mean of its divisors is an integer number (966207690).

Almost surely, 2^13122256156 is an apocalyptic number.

It is an amenable number.

13122256156 is a deficient number, since it is larger than the sum of its proper divisors (10066728404).

13122256156 is a wasteful number, since it uses less digits than its factorization.

13122256156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13893 (or 13891 counting only the distinct ones).

The product of its digits is 21600, while the sum is 34.

Adding to 13122256156 its reverse (65165222131), we get a palindrome (78287478287).

The spelling of 13122256156 in words is "thirteen billion, one hundred twenty-two million, two hundred fifty-six thousand, one hundred fifty-six".