13531150121 has 8 divisors (see below), whose sum is σ = 13675255944. Its totient is φ = 13387138560.

The previous prime is 13531150007. The next prime is 13531150123. The reversal of 13531150121 is 12105113531.

13531150121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 116877721 + 13414272400 = 10811^2 + 115820^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 13531150121 - 2¹⁰ = 13531149097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13531150123) 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, 286631 + ... + 330483.

It is an arithmetic number, because the mean of its divisors is an integer number (1709406993).

Almost surely, 2^13531150121 is an apocalyptic number.

It is an amenable number.

13531150121 is a deficient number, since it is larger than the sum of its proper divisors (144105823).

13531150121 is an equidigital number, since it uses as much as digits as its factorization.

13531150121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47131.

The product of its (nonzero) digits is 450, while the sum is 23.

Adding to 13531150121 its reverse (12105113531), we get a palindrome (25636263652).

The spelling of 13531150121 in words is "thirteen billion, five hundred thirty-one million, one hundred fifty thousand, one hundred twenty-one".