13131030173 has 2 divisors, whose sum is σ = 13131030174. Its totient is φ = 13131030172.

The previous prime is 13131030167. The next prime is 13131030193. The reversal of 13131030173 is 37103013131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10799782084 + 2331248089 = 103922^2 + 48283^2 .

It is a cyclic number.

It is not a de Polignac number, because 13131030173 - 2¹⁸ = 13130768029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13131030193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6565515086 + 6565515087.

It is an arithmetic number, because the mean of its divisors is an integer number (6565515087).

Almost surely, 2^13131030173 is an apocalyptic number.

It is an amenable number.

13131030173 is a deficient number, since it is larger than the sum of its proper divisors (1).

13131030173 is an equidigital number, since it uses as much as digits as its factorization.

13131030173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 567, while the sum is 23.

The spelling of 13131030173 in words is "thirteen billion, one hundred thirty-one million, thirty thousand, one hundred seventy-three".