13201231521215 has 32 divisors (see below), whose sum is σ = 16242522734592. Its totient is φ = 10294092448000.

The previous prime is 13201231521211. The next prime is 13201231521311. The reversal of 13201231521215 is 51212513210231.

It is not a de Polignac number, because 13201231521215 - 2² = 13201231521211 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13201231521211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1308213320 + ... + 1308223410.

It is an arithmetic number, because the mean of its divisors is an integer number (507578835456).

Almost surely, 2^{13201231521215} is an apocalyptic number.

13201231521215 is a deficient number, since it is larger than the sum of its proper divisors (3041291213377).

13201231521215 is a wasteful number, since it uses less digits than its factorization.

13201231521215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15271.

The product of its (nonzero) digits is 3600, while the sum is 29.

Adding to 13201231521215 its reverse (51212513210231), we get a palindrome (64413744731446).

The spelling of 13201231521215 in words is "thirteen trillion, two hundred one billion, two hundred thirty-one million, five hundred twenty-one thousand, two hundred fifteen".