12930688193 has 4 divisors (see below), whose sum is σ = 12930925140. Its totient is φ = 12930451248.

The previous prime is 12930688187. The next prime is 12930688231. The reversal of 12930688193 is 39188603921.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 39188603921 = 30203 ⋅1297507.

It can be written as a sum of positive squares in 2 ways, for example, as 3664123024 + 9266565169 = 60532^2 + 96263^2 .

It is a cyclic number.

It is not a de Polignac number, because 12930688193 - 2²⁰ = 12929639617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12930688103) 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, 9371 + ... + 161087.

It is an arithmetic number, because the mean of its divisors is an integer number (3232731285).

Almost surely, 2^12930688193 is an apocalyptic number.

It is an amenable number.

12930688193 is a deficient number, since it is larger than the sum of its proper divisors (236947).

12930688193 is an equidigital number, since it uses as much as digits as its factorization.

12930688193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236946.

The product of its (nonzero) digits is 559872, while the sum is 50.

The spelling of 12930688193 in words is "twelve billion, nine hundred thirty million, six hundred eighty-eight thousand, one hundred ninety-three".