13531321097 has 8 divisors (see below), whose sum is σ = 15882323136. Its totient is φ = 11284808112.

The previous prime is 13531321087. The next prime is 13531321109. The reversal of 13531321097 is 79012313531.

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 13531321097 - 2¹⁰ = 13531320073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13531321057) 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, 26121983 + ... + 26122500.

It is an arithmetic number, because the mean of its divisors is an integer number (1985290392).

Almost surely, 2^13531321097 is an apocalyptic number.

It is an amenable number.

13531321097 is a deficient number, since it is larger than the sum of its proper divisors (2351002039).

13531321097 is an equidigital number, since it uses as much as digits as its factorization.

13531321097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52244527.

The product of its (nonzero) digits is 17010, while the sum is 35.

The spelling of 13531321097 in words is "thirteen billion, five hundred thirty-one million, three hundred twenty-one thousand, ninety-seven".