13453453352521 has 8 divisors (see below), whose sum is σ = 16558096433984. Its totient is φ = 10644490564560.

The previous prime is 13453453352489. The next prime is 13453453352533. The reversal of 13453453352521 is 12525335435431.

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 13453453352521 - 2⁵ = 13453453352489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13453453382521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73920073275 + ... + 73920073456.

It is an arithmetic number, because the mean of its divisors is an integer number (2069762054248).

Almost surely, 2^{13453453352521} is an apocalyptic number.

It is an amenable number.

13453453352521 is a deficient number, since it is larger than the sum of its proper divisors (3104643081463).

13453453352521 is a wasteful number, since it uses less digits than its factorization.

13453453352521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147840146751.

The product of its digits is 3240000, while the sum is 46.

Adding to 13453453352521 its reverse (12525335435431), we get a palindrome (25978788787952).

The spelling of 13453453352521 in words is "thirteen trillion, four hundred fifty-three billion, four hundred fifty-three million, three hundred fifty-two thousand, five hundred twenty-one".