13204232520 has 128 divisors (see below), whose sum is σ = 42087911040. Its totient is φ = 3302543360.

The previous prime is 13204232519. The next prime is 13204232521. The reversal of 13204232520 is 2523240231.

It is an interprime number because it is at equal distance from previous prime (13204232519) and next prime (13204232521).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (13204232521) 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, 586675 + ... + 608765.

It is an arithmetic number, because the mean of its divisors is an integer number (328811805).

Almost surely, 2^13204232520 is an apocalyptic number.

13204232520 is a gapful number since it is divisible by the number (10) 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 13204232520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21043955520).

13204232520 is an abundant number, since it is smaller than the sum of its proper divisors (28883678520).

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

13204232520 is a wasteful number, since it uses less digits than its factorization.

13204232520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22415 (or 22411 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

Adding to 13204232520 its reverse (2523240231), we get a palindrome (15727472751).

The spelling of 13204232520 in words is "thirteen billion, two hundred four million, two hundred thirty-two thousand, five hundred twenty".