13530023532 has 72 divisors (see below), whose sum is σ = 35482137600. Its totient is φ = 4342520160.

The previous prime is 13530023531. The next prime is 13530023543. The reversal of 13530023532 is 23532003531.

13530023532 is a `hidden beast` number, since 1 + 3 + 5 + 300 + 2 + 353 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 13530023496 and 13530023505.

It is not an unprimeable number, because it can be changed into a prime (13530023531) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 191623 + ... + 252545.

Almost surely, 2^13530023532 is an apocalyptic number.

13530023532 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13530023532, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17741068800).

13530023532 is an abundant number, since it is smaller than the sum of its proper divisors (21952114068).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13530023532 is a wasteful number, since it uses less digits than its factorization.

13530023532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61163 (or 61158 counting only the distinct ones).

The product of its (nonzero) digits is 8100, while the sum is 27.

The spelling of 13530023532 in words is "thirteen billion, five hundred thirty million, twenty-three thousand, five hundred thirty-two".