13530455403531 has 16 divisors (see below), whose sum is σ = 19694434805760. Its totient is φ = 8194537501920.

The previous prime is 13530455403499. The next prime is 13530455403593.

13530455403531 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 13530455403531 - 2⁵ = 13530455403499 is a prime.

It is a super-2 number, since 2×13530455403531² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13530455403431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 143414635 + ... + 143508948.

It is an arithmetic number, because the mean of its divisors is an integer number (1230902175360).

Almost surely, 2^{13530455403531} is an apocalyptic number.

13530455403531 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13530455403531 is a deficient number, since it is larger than the sum of its proper divisors (6163979402229).

13530455403531 is a wasteful number, since it uses less digits than its factorization.

13530455403531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286925026.

The product of its (nonzero) digits is 810000, while the sum is 42.

It can be divided in two parts, 1353045 and 5403531, that added together give a palindrome (6756576).

The spelling of 13530455403531 in words is "thirteen trillion, five hundred thirty billion, four hundred fifty-five million, four hundred three thousand, five hundred thirty-one".