12530565345 has 16 divisors (see below), whose sum is σ = 20537903232. Its totient is φ = 6519968640.

The previous prime is 12530565287. The next prime is 12530565403. The reversal of 12530565345 is 54356503521.

It is an interprime number because it is at equal distance from previous prime (12530565287) and next prime (12530565403).

It is not a de Polignac number, because 12530565345 - 2¹² = 12530561249 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10186837 + ... + 10188066.

It is an arithmetic number, because the mean of its divisors is an integer number (1283618952).

Almost surely, 2^12530565345 is an apocalyptic number.

12530565345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12530565345 is a deficient number, since it is larger than the sum of its proper divisors (8007337887).

12530565345 is a wasteful number, since it uses less digits than its factorization.

12530565345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20374952.

The product of its (nonzero) digits is 270000, while the sum is 39.

The spelling of 12530565345 in words is "twelve billion, five hundred thirty million, five hundred sixty-five thousand, three hundred forty-five".