1603364503121 has 2 divisors, whose sum is σ = 1603364503122. Its totient is φ = 1603364503120.

The previous prime is 1603364503067. The next prime is 1603364503129. The reversal of 1603364503121 is 1213054633061.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1256102977600 + 347261525521 = 1120760^2 + 589289^2 .

It is a cyclic number.

It is not a de Polignac number, because 1603364503121 - 2⁶ = 1603364503057 is a prime.

It is not a weakly prime, because it can be changed into another prime (1603364503129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 801682251560 + 801682251561.

It is an arithmetic number, because the mean of its divisors is an integer number (801682251561).

Almost surely, 2^{1603364503121} is an apocalyptic number.

It is an amenable number.

1603364503121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1603364503121 is an equidigital number, since it uses as much as digits as its factorization.

1603364503121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 38880, while the sum is 35.

The spelling of 1603364503121 in words is "one trillion, six hundred three billion, three hundred sixty-four million, five hundred three thousand, one hundred twenty-one".