13323420525 has 24 divisors (see below), whose sum is σ = 22103272800. Its totient is φ = 7081560640.

The previous prime is 13323420499. The next prime is 13323420563. The reversal of 13323420525 is 52502432331.

It is not a de Polignac number, because 13323420525 - 2⁵ = 13323420493 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 13323420492 and 13323420501.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 281175 + ... + 325124.

It is an arithmetic number, because the mean of its divisors is an integer number (920969700).

Almost surely, 2^13323420525 is an apocalyptic number.

13323420525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13323420525 is a deficient number, since it is larger than the sum of its proper divisors (8779852275).

13323420525 is a wasteful number, since it uses less digits than its factorization.

13323420525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 606605 (or 606600 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 30.

Adding to 13323420525 its reverse (52502432331), we get a palindrome (65825852856).

The spelling of 13323420525 in words is "thirteen billion, three hundred twenty-three million, four hundred twenty thousand, five hundred twenty-five".