13530353131 has 4 divisors (see below), whose sum is σ = 14242477000. Its totient is φ = 12818229264.

The previous prime is 13530353113. The next prime is 13530353141. The reversal of 13530353131 is 13135303531.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13530353131 - 2¹³ = 13530344939 is a prime.

It is a super-2 number, since 2×13530353131² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13530353131.

It is not an unprimeable number, because it can be changed into a prime (13530353141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 356061906 + ... + 356061943.

It is an arithmetic number, because the mean of its divisors is an integer number (3560619250).

Almost surely, 2^13530353131 is an apocalyptic number.

13530353131 is a deficient number, since it is larger than the sum of its proper divisors (712123869).

13530353131 is an equidigital number, since it uses as much as digits as its factorization.

13530353131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 712123868.

The product of its (nonzero) digits is 6075, while the sum is 28.

Adding to 13530353131 its reverse (13135303531), we get a palindrome (26665656662).

The spelling of 13530353131 in words is "thirteen billion, five hundred thirty million, three hundred fifty-three thousand, one hundred thirty-one".