1321927182503 has 2 divisors, whose sum is σ = 1321927182504. Its totient is φ = 1321927182502.

The previous prime is 1321927182497. The next prime is 1321927182601. The reversal of 1321927182503 is 3052817291231.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1321927182503 - 2⁶ = 1321927182439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1321927181503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660963591251 + 660963591252.

It is an arithmetic number, because the mean of its divisors is an integer number (660963591252).

Almost surely, 2^{1321927182503} is an apocalyptic number.

1321927182503 is a deficient number, since it is larger than the sum of its proper divisors (1).

1321927182503 is an equidigital number, since it uses as much as digits as its factorization.

1321927182503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 181440, while the sum is 44.

The spelling of 1321927182503 in words is "one trillion, three hundred twenty-one billion, nine hundred twenty-seven million, one hundred eighty-two thousand, five hundred three".