13231450415505 has 32 divisors (see below), whose sum is σ = 24591285842688. Its totient is φ = 5949504633600.

The previous prime is 13231450415473. The next prime is 13231450415531. The reversal of 13231450415505 is 50551405413231.

It is not a de Polignac number, because 13231450415505 - 2⁵ = 13231450415473 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1032893706 + ... + 1032906515.

It is an arithmetic number, because the mean of its divisors is an integer number (768477682584).

Almost surely, 2^{13231450415505} is an apocalyptic number.

13231450415505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13231450415505 is a deficient number, since it is larger than the sum of its proper divisors (11359835427183).

13231450415505 is a wasteful number, since it uses less digits than its factorization.

13231450415505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2065800297.

The product of its (nonzero) digits is 180000, while the sum is 39.

Adding to 13231450415505 its reverse (50551405413231), we get a palindrome (63782855828736).

The spelling of 13231450415505 in words is "thirteen trillion, two hundred thirty-one billion, four hundred fifty million, four hundred fifteen thousand, five hundred five".