12730518099 has 24 divisors (see below), whose sum is σ = 19896919952. Its totient is φ = 7797021120.

The previous prime is 12730518091. The next prime is 12730518113. The reversal of 12730518099 is 99081503721.

12730518099 is a `hidden beast` number, since 12 + 7 + 30 + 518 + 0 + 99 = 666.

It is not a de Polignac number, because 12730518099 - 2³ = 12730518091 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (12730518091) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 233152 + ... + 282525.

Almost surely, 2^12730518099 is an apocalyptic number.

12730518099 is a deficient number, since it is larger than the sum of its proper divisors (7166401853).

12730518099 is a wasteful number, since it uses less digits than its factorization.

12730518099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 515907 (or 515904 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 45.

The spelling of 12730518099 in words is "twelve billion, seven hundred thirty million, five hundred eighteen thousand, ninety-nine".