12445893503 has 2 divisors, whose sum is σ = 12445893504. Its totient is φ = 12445893502.

The previous prime is 12445893461. The next prime is 12445893517. The reversal of 12445893503 is 30539854421.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12445893503 - 2¹⁶ = 12445827967 is a prime.

It is a super-2 number, since 2×12445893503² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12445893533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6222946751 + 6222946752.

It is an arithmetic number, because the mean of its divisors is an integer number (6222946752).

Almost surely, 2^12445893503 is an apocalyptic number.

12445893503 is a deficient number, since it is larger than the sum of its proper divisors (1).

12445893503 is an equidigital number, since it uses as much as digits as its factorization.

12445893503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 518400, while the sum is 44.

The spelling of 12445893503 in words is "twelve billion, four hundred forty-five million, eight hundred ninety-three thousand, five hundred three".