13531125002 has 16 divisors (see below), whose sum is σ = 20379312072. Its totient is φ = 6738051840.

The previous prime is 13531124989. The next prime is 13531125007. The reversal of 13531125002 is 20052113531.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 13488731881 + 42393121 = 116141^2 + 6511^2 .

It is not an unprimeable number, because it can be changed into a prime (13531125007) 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 7 ways as a sum of consecutive naturals, for example, 1001798 + ... + 1015214.

Almost surely, 2^13531125002 is an apocalyptic number.

13531125002 is a deficient number, since it is larger than the sum of its proper divisors (6848187070).

13531125002 is a wasteful number, since it uses less digits than its factorization.

13531125002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15433.

The product of its (nonzero) digits is 900, while the sum is 23.

Adding to 13531125002 its reverse (20052113531), we get a palindrome (33583238533).

The spelling of 13531125002 in words is "thirteen billion, five hundred thirty-one million, one hundred twenty-five thousand, two".