13131520515001 has 4 divisors (see below), whose sum is σ = 15007452017152. Its totient is φ = 11255589012852.

The previous prime is 13131520514941. The next prime is 13131520515013. The reversal of 13131520515001 is 10051502513131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13131520515001 - 2²⁹ = 13130983644089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13131520015001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 937965751065 + ... + 937965751078.

It is an arithmetic number, because the mean of its divisors is an integer number (3751863004288).

Almost surely, 2^{13131520515001} is an apocalyptic number.

It is an amenable number.

13131520515001 is a deficient number, since it is larger than the sum of its proper divisors (1875931502151).

13131520515001 is an equidigital number, since it uses as much as digits as its factorization.

13131520515001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1875931502150.

The product of its (nonzero) digits is 2250, while the sum is 28.

The spelling of 13131520515001 in words is "thirteen trillion, one hundred thirty-one billion, five hundred twenty million, five hundred fifteen thousand, one".