131913402193 has 2 divisors, whose sum is σ = 131913402194. Its totient is φ = 131913402192.

The previous prime is 131913402163. The next prime is 131913402311. The reversal of 131913402193 is 391204319131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 125243086609 + 6670315584 = 353897^2 + 81672^2 .

It is an emirp because it is prime and its reverse (391204319131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 131913402193 - 2⁵ = 131913402161 is a prime.

It is a super-2 number, since 2×131913402193² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (131913402133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65956701096 + 65956701097.

It is an arithmetic number, because the mean of its divisors is an integer number (65956701097).

Almost surely, 2^131913402193 is an apocalyptic number.

It is an amenable number.

131913402193 is a deficient number, since it is larger than the sum of its proper divisors (1).

131913402193 is an equidigital number, since it uses as much as digits as its factorization.

131913402193 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17496, while the sum is 37.

The spelling of 131913402193 in words is "one hundred thirty-one billion, nine hundred thirteen million, four hundred two thousand, one hundred ninety-three".