180306130557243 has 16 divisors (see below), whose sum is σ = 242913687019136. Its totient is φ = 118951606874880.

The previous prime is 180306130557169. The next prime is 180306130557257. The reversal of 180306130557243 is 342755031603081.

It is not a de Polignac number, because 180306130557243 - 2²⁰ = 180306129508667 is a prime.

It is a super-2 number, since 2×180306130557243² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 180306130557192 and 180306130557201.

It is not an unprimeable number, because it can be changed into a prime (180306130557263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31923421 + ... + 37144542.

It is an arithmetic number, because the mean of its divisors is an integer number (15182105438696).

Almost surely, 2^{180306130557243} is an apocalyptic number.

180306130557243 is a deficient number, since it is larger than the sum of its proper divisors (62607556461893).

180306130557243 is an equidigital number, since it uses as much as digits as its factorization.

180306130557243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69077034.

The product of its (nonzero) digits is 1814400, while the sum is 48.

The spelling of 180306130557243 in words is "one hundred eighty trillion, three hundred six billion, one hundred thirty million, five hundred fifty-seven thousand, two hundred forty-three".