13201173049 has 2 divisors, whose sum is σ = 13201173050. Its totient is φ = 13201173048.

The previous prime is 13201172939. The next prime is 13201173067. The reversal of 13201173049 is 94037110231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12604103824 + 597069225 = 112268^2 + 24435^2 .

It is a cyclic number.

It is not a de Polignac number, because 13201173049 - 2⁷ = 13201172921 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13201173049.

It is not a weakly prime, because it can be changed into another prime (13201173079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6600586524 + 6600586525.

It is an arithmetic number, because the mean of its divisors is an integer number (6600586525).

Almost surely, 2^13201173049 is an apocalyptic number.

It is an amenable number.

13201173049 is a deficient number, since it is larger than the sum of its proper divisors (1).

13201173049 is an equidigital number, since it uses as much as digits as its factorization.

13201173049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 31.

The spelling of 13201173049 in words is "thirteen billion, two hundred one million, one hundred seventy-three thousand, forty-nine".