12503215869 has 4 divisors (see below), whose sum is σ = 16670954496. Its totient is φ = 8335477244.

The previous prime is 12503215841. The next prime is 12503215883. The reversal of 12503215869 is 96851230521.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 96851230521 = 3 ⋅32283743507.

It is a cyclic number.

It is not a de Polignac number, because 12503215869 - 2¹⁵ = 12503183101 is a prime.

It is a super-2 number, since 2×12503215869² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12503215869.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12503210869) 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, 2083869309 + ... + 2083869314.

It is an arithmetic number, because the mean of its divisors is an integer number (4167738624).

Almost surely, 2^12503215869 is an apocalyptic number.

It is an amenable number.

12503215869 is a deficient number, since it is larger than the sum of its proper divisors (4167738627).

12503215869 is an equidigital number, since it uses as much as digits as its factorization.

12503215869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4167738626.

The product of its (nonzero) digits is 129600, while the sum is 42.

The spelling of 12503215869 in words is "twelve billion, five hundred three million, two hundred fifteen thousand, eight hundred sixty-nine".