361803161131 has 2 divisors, whose sum is σ = 361803161132. Its totient is φ = 361803161130.

The previous prime is 361803161123. The next prime is 361803161183. The reversal of 361803161131 is 131161308163.

It is a weak prime.

It is an emirp because it is prime and its reverse (131161308163) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 361803161131 - 2³ = 361803161123 is a prime.

It is a super-2 number, since 2×361803161131² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (361803162131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 180901580565 + 180901580566.

It is an arithmetic number, because the mean of its divisors is an integer number (180901580566).

Almost surely, 2^361803161131 is an apocalyptic number.

361803161131 is a deficient number, since it is larger than the sum of its proper divisors (1).

361803161131 is an equidigital number, since it uses as much as digits as its factorization.

361803161131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 34.

Adding to 361803161131 its reverse (131161308163), we get a palindrome (492964469294).

The spelling of 361803161131 in words is "three hundred sixty-one billion, eight hundred three million, one hundred sixty-one thousand, one hundred thirty-one".