13131520163 has 2 divisors, whose sum is σ = 13131520164. Its totient is φ = 13131520162.

The previous prime is 13131520153. The next prime is 13131520271. The reversal of 13131520163 is 36102513131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13131520163 - 2¹² = 13131516067 is a prime.

It is not a weakly prime, because it can be changed into another prime (13131520153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6565760081 + 6565760082.

It is an arithmetic number, because the mean of its divisors is an integer number (6565760082).

Almost surely, 2^13131520163 is an apocalyptic number.

13131520163 is a deficient number, since it is larger than the sum of its proper divisors (1).

13131520163 is an equidigital number, since it uses as much as digits as its factorization.

13131520163 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1620, while the sum is 26.

The spelling of 13131520163 in words is "thirteen billion, one hundred thirty-one million, five hundred twenty thousand, one hundred sixty-three".