12530520215 has 8 divisors (see below), whose sum is σ = 15038888208. Its totient is φ = 10022906880.

The previous prime is 12530520203. The next prime is 12530520251. The reversal of 12530520215 is 51202503521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12530520215 - 2¹⁶ = 12530454679 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 151466 + ... + 219095.

It is an arithmetic number, because the mean of its divisors is an integer number (1879861026).

Almost surely, 2^12530520215 is an apocalyptic number.

12530520215 is a deficient number, since it is larger than the sum of its proper divisors (2508367993).

12530520215 is an equidigital number, since it uses as much as digits as its factorization.

12530520215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377329.

The product of its (nonzero) digits is 3000, while the sum is 26.

The spelling of 12530520215 in words is "twelve billion, five hundred thirty million, five hundred twenty thousand, two hundred fifteen".