13235021001 has 24 divisors (see below), whose sum is σ = 19856176704. Its totient is φ = 8809605360.

The previous prime is 13235020987. The next prime is 13235021017. The reversal of 13235021001 is 10012053231.

13235021001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13235021001 - 2¹⁸ = 13234758857 is a prime.

It is a super-2 number, since 2×13235021001² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13235021021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 115131 + ... + 199311.

It is an arithmetic number, because the mean of its divisors is an integer number (827340696).

Almost surely, 2^13235021001 is an apocalyptic number.

It is an amenable number.

13235021001 is a deficient number, since it is larger than the sum of its proper divisors (6621155703).

13235021001 is an frugal number, since it uses more digits than its factorization.

13235021001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84843 (or 84831 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

Adding to 13235021001 its reverse (10012053231), we get a palindrome (23247074232).

It can be divided in two parts, 132350 and 21001, that added together give a palindrome (153351).

The spelling of 13235021001 in words is "thirteen billion, two hundred thirty-five million, twenty-one thousand, one".