13131521041121 has 24 divisors (see below), whose sum is σ = 15283576998144. Its totient is φ = 11249597792160.

The previous prime is 13131521041073. The next prime is 13131521041139. The reversal of 13131521041121 is 12114012513131.

It is not a de Polignac number, because 13131521041121 - 2¹⁰ = 13131521040097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13131521041421) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 940444286 + ... + 940458248.

It is an arithmetic number, because the mean of its divisors is an integer number (636815708256).

Almost surely, 2^{13131521041121} is an apocalyptic number.

It is an amenable number.

13131521041121 is a deficient number, since it is larger than the sum of its proper divisors (2152055957023).

13131521041121 is a wasteful number, since it uses less digits than its factorization.

13131521041121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22821 (or 22814 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 26.

Adding to 13131521041121 its reverse (12114012513131), we get a palindrome (25245533554252).

The spelling of 13131521041121 in words is "thirteen trillion, one hundred thirty-one billion, five hundred twenty-one million, forty-one thousand, one hundred twenty-one".