13125421036 has 24 divisors (see below), whose sum is σ = 28270138400. Its totient is φ = 5192474112.

The previous prime is 13125421031. The next prime is 13125421037. The reversal of 13125421036 is 63012452131.

13125421036 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 13125420995 and 13125421013.

It is not an unprimeable number, because it can be changed into a prime (13125421031) 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, 18029061 + ... + 18029788.

Almost surely, 2^13125421036 is an apocalyptic number.

It is an amenable number.

13125421036 is an abundant number, since it is smaller than the sum of its proper divisors (15144717364).

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

13125421036 is a wasteful number, since it uses less digits than its factorization.

13125421036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36058873 (or 36058871 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

Adding to 13125421036 its reverse (63012452131), we get a palindrome (76137873167).

The spelling of 13125421036 in words is "thirteen billion, one hundred twenty-five million, four hundred twenty-one thousand, thirty-six".