13531135530 has 64 divisors (see below), whose sum is σ = 35474184576. Its totient is φ = 3275904000.

The previous prime is 13531135523. The next prime is 13531135537. The reversal of 13531135530 is 3553113531.

It is an interprime number because it is at equal distance from previous prime (13531135523) and next prime (13531135537).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (13531135537) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 224190 + ... + 278070.

It is an arithmetic number, because the mean of its divisors is an integer number (554284134).

Almost surely, 2^13531135530 is an apocalyptic number.

13531135530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 13531135530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17737092288).

13531135530 is an abundant number, since it is smaller than the sum of its proper divisors (21943049046).

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

13531135530 is a wasteful number, since it uses less digits than its factorization.

13531135530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54663.

The product of its (nonzero) digits is 10125, while the sum is 30.

The spelling of 13531135530 in words is "thirteen billion, five hundred thirty-one million, one hundred thirty-five thousand, five hundred thirty".