12503071663673 has 4 divisors (see below), whose sum is σ = 12503113328640. Its totient is φ = 12503029998708.

The previous prime is 12503071663639. The next prime is 12503071663723. The reversal of 12503071663673 is 37636617030521.

12503071663673 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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.

It is a cyclic number.

It is not a de Polignac number, because 12503071663673 - 2⁶ = 12503071663609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12503071663573) 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, 20379065 + ... + 20983622.

It is an arithmetic number, because the mean of its divisors is an integer number (3125778332160).

Almost surely, 2^{12503071663673} is an apocalyptic number.

It is an amenable number.

12503071663673 is a deficient number, since it is larger than the sum of its proper divisors (41664967).

12503071663673 is an equidigital number, since it uses as much as digits as its factorization.

12503071663673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41664966.

The product of its (nonzero) digits is 2857680, while the sum is 50.

The spelling of 12503071663673 in words is "twelve trillion, five hundred three billion, seventy-one million, six hundred sixty-three thousand, six hundred seventy-three".