13530454431 has 16 divisors (see below), whose sum is σ = 19558744800. Its totient is φ = 8270547840.

The previous prime is 13530454393. The next prime is 13530454447. The reversal of 13530454431 is 13445403531.

It is not a de Polignac number, because 13530454431 - 2¹³ = 13530446239 is a prime.

It is a super-2 number, since 2×13530454431² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13530454392 and 13530454401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13530454481) 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, 1158400 + ... + 1170021.

It is an arithmetic number, because the mean of its divisors is an integer number (1222421550).

Almost surely, 2^13530454431 is an apocalyptic number.

13530454431 is a deficient number, since it is larger than the sum of its proper divisors (6028290369).

13530454431 is a wasteful number, since it uses less digits than its factorization.

13530454431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2328586.

The product of its (nonzero) digits is 43200, while the sum is 33.

Adding to 13530454431 its reverse (13445403531), we get a palindrome (26975857962).

The spelling of 13530454431 in words is "thirteen billion, five hundred thirty million, four hundred fifty-four thousand, four hundred thirty-one".