13205001235 has 8 divisors (see below), whose sum is σ = 16680001680. Its totient is φ = 10008000864.

The previous prime is 13205001233. The next prime is 13205001239. The reversal of 13205001235 is 53210050231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13205001235 - 2¹ = 13205001233 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13205001233) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 69499912 + ... + 69500101.

It is an arithmetic number, because the mean of its divisors is an integer number (2085000210).

Almost surely, 2^13205001235 is an apocalyptic number.

13205001235 is a deficient number, since it is larger than the sum of its proper divisors (3475000445).

13205001235 is a wasteful number, since it uses less digits than its factorization.

13205001235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139000037.

The product of its (nonzero) digits is 900, while the sum is 22.

Adding to 13205001235 its reverse (53210050231), we get a palindrome (66415051466).

The spelling of 13205001235 in words is "thirteen billion, two hundred five million, one thousand, two hundred thirty-five".