13523230340 has 12 divisors (see below), whose sum is σ = 28398783756. Its totient is φ = 5409292128.

The previous prime is 13523230337. The next prime is 13523230379. The reversal of 13523230340 is 4303232531.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3790618624 + 9732611716 = 61568^2 + 98654^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 338080739 + ... + 338080778.

It is an arithmetic number, because the mean of its divisors is an integer number (2366565313).

Almost surely, 2^13523230340 is an apocalyptic number.

13523230340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13523230340 is an abundant number, since it is smaller than the sum of its proper divisors (14875553416).

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

13523230340 is a wasteful number, since it uses less digits than its factorization.

13523230340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 676161526 (or 676161524 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 26.

Adding to 13523230340 its reverse (4303232531), we get a palindrome (17826462871).

The spelling of 13523230340 in words is "thirteen billion, five hundred twenty-three million, two hundred thirty thousand, three hundred forty".