12730250181 has 32 divisors (see below), whose sum is σ = 18812860416. Its totient is φ = 7592840000.

The previous prime is 12730250179. The next prime is 12730250209. The reversal of 12730250181 is 18105203721.

It is a cyclic number.

It is not a de Polignac number, because 12730250181 - 2¹ = 12730250179 is a prime.

It is a super-2 number, since 2×12730250181² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12730250101) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 545176 + ... + 568046.

It is an arithmetic number, because the mean of its divisors is an integer number (587901888).

Almost surely, 2^12730250181 is an apocalyptic number.

12730250181 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12730250181 is a deficient number, since it is larger than the sum of its proper divisors (6082610235).

12730250181 is a wasteful number, since it uses less digits than its factorization.

12730250181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23153.

The product of its (nonzero) digits is 3360, while the sum is 30.

The spelling of 12730250181 in words is "twelve billion, seven hundred thirty million, two hundred fifty thousand, one hundred eighty-one".