180190281131 has 4 divisors (see below), whose sum is σ = 205931749872. Its totient is φ = 154448812392.

The previous prime is 180190281121. The next prime is 180190281149. The reversal of 180190281131 is 131182091081.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 180190281131 - 2³⁴ = 163010411947 is a prime.

It is a super-2 number, since 2×180190281131² (a number of 23 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 = 180190281091 and 180190281100.

It is not an unprimeable number, because it can be changed into a prime (180190281121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12870734360 + ... + 12870734373.

It is an arithmetic number, because the mean of its divisors is an integer number (51482937468).

Almost surely, 2^180190281131 is an apocalyptic number.

180190281131 is a deficient number, since it is larger than the sum of its proper divisors (25741468741).

180190281131 is an equidigital number, since it uses as much as digits as its factorization.

180190281131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25741468740.

The product of its (nonzero) digits is 3456, while the sum is 35.

The spelling of 180190281131 in words is "one hundred eighty billion, one hundred ninety million, two hundred eighty-one thousand, one hundred thirty-one".