12503215841 has 2 divisors, whose sum is σ = 12503215842. Its totient is φ = 12503215840.

The previous prime is 12503215831. The next prime is 12503215883. The reversal of 12503215841 is 14851230521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12165207616 + 338008225 = 110296^2 + 18385^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12503215841 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12503215798 and 12503215807.

It is not a weakly prime, because it can be changed into another prime (12503215831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6251607920 + 6251607921.

It is an arithmetic number, because the mean of its divisors is an integer number (6251607921).

Almost surely, 2^12503215841 is an apocalyptic number.

It is an amenable number.

12503215841 is a deficient number, since it is larger than the sum of its proper divisors (1).

12503215841 is an equidigital number, since it uses as much as digits as its factorization.

12503215841 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9600, while the sum is 32.

The spelling of 12503215841 in words is "twelve billion, five hundred three million, two hundred fifteen thousand, eight hundred forty-one".