12730539111 has 4 divisors (see below), whose sum is σ = 16974052152. Its totient is φ = 8487026072.

The previous prime is 12730539061. The next prime is 12730539113. The reversal of 12730539111 is 11193503721.

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

It is a cyclic number.

It is not a de Polignac number, because 12730539111 - 2⁷ = 12730538983 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12730539113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2121756516 + ... + 2121756521.

It is an arithmetic number, because the mean of its divisors is an integer number (4243513038).

Almost surely, 2^12730539111 is an apocalyptic number.

12730539111 is a deficient number, since it is larger than the sum of its proper divisors (4243513041).

12730539111 is an equidigital number, since it uses as much as digits as its factorization.

12730539111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4243513040.

The product of its (nonzero) digits is 5670, while the sum is 33.

The spelling of 12730539111 in words is "twelve billion, seven hundred thirty million, five hundred thirty-nine thousand, one hundred eleven".